diff --git a/.github/workflows/windows-build.yml b/.github/workflows/windows-build.yml
index 2412235c5..0338cfffd 100644
--- a/.github/workflows/windows-build.yml
+++ b/.github/workflows/windows-build.yml
@@ -227,6 +227,9 @@ jobs:
           cp -r "$GITHUB_WORKSPACE/titleblocks" "$FILES/titleblocks" || true
           cp -r "$GITHUB_WORKSPACE/examples"    "$FILES/examples"    || true
           cp -r "$GITHUB_WORKSPACE/fonts"       "$FILES/fonts"       || true
+          # The MCP server finds bin/QElectroTech.exe and elements/ from mcp/.
+          mkdir -p "$FILES/mcp"
+          cp "$GITHUB_WORKSPACE/misc/qet-mcp/qet_mcp.py" "$GITHUB_WORKSPACE/misc/qet-mcp/README.md" "$FILES/mcp/"
 
           # --- Translations ---
           # Since PR #751 the .qm files are no longer tracked in git: lrelease
@@ -305,7 +308,7 @@ jobs:
               && echo "  OK      : $f" \
               || echo "  MISSING: $f"
           done
-          for d in ico elements lang titleblocks fonts examples bin; do
+          for d in ico elements lang titleblocks fonts examples bin mcp; do
             [ -d "$FILES/$d" ] \
               && echo "  OK      : $d/" \
               || echo "  MISSING: $d/"
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a14f309f1..120f53a40 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -358,6 +358,10 @@ if (NOT MINGW)
     install(DIRECTORY elements    DESTINATION share/qelectrotech)
     install(DIRECTORY examples    DESTINATION share/qelectrotech)
     install(DIRECTORY titleblocks DESTINATION share/qelectrotech)
+    # The MCP server (misc/qet-mcp) finds this QElectroTech and its elements
+    # from here: <prefix>/share/qelectrotech/mcp -> <prefix>/bin.
+    install(PROGRAMS misc/qet-mcp/qet_mcp.py DESTINATION share/qelectrotech/mcp)
+    install(FILES misc/qet-mcp/README.md DESTINATION share/qelectrotech/mcp)
     install(FILES LICENSE ELEMENTS.LICENSE CREDIT README ChangeLog DESTINATION share/doc/qelectrotech)
     if(UNIX AND NOT APPLE)
         install(FILES misc/org.qelectrotech.qelectrotech.desktop DESTINATION share/applications)
diff --git a/build-aux/windows/QET64.nsi b/build-aux/windows/QET64.nsi
index cc1d81bd0..b1967b08f 100644
--- a/build-aux/windows/QET64.nsi
+++ b/build-aux/windows/QET64.nsi
@@ -274,6 +274,13 @@ Section "$(Fonts)" SEC05
     File /nonfatal /r "./files/fonts"
 SectionEnd
 
+; The MCP server lets an AI assistant open, check and edit drawings. It does
+; nothing until a user sets up an assistant to start it.
+Section "$(Mcp)" SEC06
+    SetOutPath "$INSTDIR\mcp"
+    File /nonfatal "./files/mcp/*"
+SectionEnd
+
 ;--------------------------------
 ; Component descriptions
 !insertmacro MUI_FUNCTION_DESCRIPTION_BEGIN
@@ -282,6 +289,7 @@ SectionEnd
     !insertmacro MUI_DESCRIPTION_TEXT ${SEC03} $(var3)
     !insertmacro MUI_DESCRIPTION_TEXT ${SEC04} $(var4)
     !insertmacro MUI_DESCRIPTION_TEXT ${SEC05} $(var5)
+    !insertmacro MUI_DESCRIPTION_TEXT ${SEC06} $(var6)
 !insertmacro MUI_FUNCTION_DESCRIPTION_END
 
 ;--------------------------------
diff --git a/build-aux/windows/lang_extra.nsh b/build-aux/windows/lang_extra.nsh
index c76f128fd..2f51fafa6 100644
--- a/build-aux/windows/lang_extra.nsh
+++ b/build-aux/windows/lang_extra.nsh
@@ -19,6 +19,8 @@
         LangString var3              ${LANG_ENGLISH}  "Examples of cartridges"
         LangString var4              ${LANG_ENGLISH}  "Examples of diagrams"
         LangString var5              ${LANG_ENGLISH}  "Fonts"
+        LangString Mcp               ${LANG_ENGLISH}  "AI assistant (MCP)"
+        LangString var6              ${LANG_ENGLISH}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_ENGLISH}  "Uninstallation of the previous version failed.$\nPlease uninstall ${SOFT_NAME} manually before continuing."
 
         
@@ -43,6 +45,8 @@
         LangString var3              ${LANG_KOREAN} "표제란 예제"
         LangString var4              ${LANG_KOREAN} "도면 예제"
         LangString var5              ${LANG_KOREAN}  "글꼴"
+        LangString Mcp               ${LANG_KOREAN}  "AI assistant (MCP)"
+        LangString var6              ${LANG_KOREAN}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_KOREAN} "이전 버전을 제거하지 못했습니다.$\n계속하기 전에 ${SOFT_NAME}을(를) 수동으로 제거해 주세요."
 
 
@@ -67,6 +71,8 @@
         LangString var3              ${LANG_POLISH}  "Przykłady tabliczek rysunkowych"
         LangString var4              ${LANG_POLISH}  "Przykłady schematów"
         LangString var5              ${LANG_POLISH}  "Czcionki"
+        LangString Mcp               ${LANG_POLISH}  "AI assistant (MCP)"
+        LangString var6              ${LANG_POLISH}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_POLISH}  "Odinstalowanie poprzedniej wersji nie powiodło się.$\nPrzed kontynuowaniem odinstaluj ręcznie program ${SOFT_NAME}."
         
         
@@ -91,6 +97,8 @@
         LangString var3              ${LANG_GREEK}  "Παραδείγματα πινακίδων"
         LangString var4              ${LANG_GREEK}  "Παραδείγματα διαγραμμάτων"
         LangString var5              ${LANG_GREEK}  "Γραμματοσειρές"
+        LangString Mcp               ${LANG_GREEK}  "AI assistant (MCP)"
+        LangString var6              ${LANG_GREEK}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_GREEK}  "Η απεγκατάσταση της προηγούμενης έκδοσης απέτυχε.$\nΠαρακαλώ απεγκαταστήστε χειροκίνητα το ${SOFT_NAME} πριν συνεχίσετε."
         
         
@@ -115,6 +123,8 @@
         LangString var3              ${LANG_CZECH}  "Příklady popisových polí"
         LangString var4              ${LANG_CZECH}  "Příklady schémat"
         LangString var5              ${LANG_CZECH}  "Písma"
+        LangString Mcp               ${LANG_CZECH}  "AI assistant (MCP)"
+        LangString var6              ${LANG_CZECH}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_CZECH}  "Odinstalování předchozí verze se nezdařilo.$\nPřed pokračováním prosím odinstalujte ${SOFT_NAME} ručně."
         
         
@@ -139,6 +149,8 @@
         LangString var3              ${LANG_SPANISH}  "Ejemplos de cartelas"
         LangString var4              ${LANG_SPANISH}  "Ejemplos de esquemas"
         LangString var5              ${LANG_SPANISH}  "Fuentes"
+        LangString Mcp               ${LANG_SPANISH}  "AI assistant (MCP)"
+        LangString var6              ${LANG_SPANISH}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_SPANISH}  "La desinstalación de la versión anterior ha fallado.$\nPor favor, desinstale ${SOFT_NAME} manualmente antes de continuar."
         
         
@@ -163,6 +175,8 @@
         LangString var3              ${LANG_GERMAN}  "Schriftfeld-Beispiele"
         LangString var4              ${LANG_GERMAN}  "Schaltplan-Beispiele"
         LangString var5              ${LANG_GERMAN}  "Schriften"
+        LangString Mcp               ${LANG_GERMAN}  "AI assistant (MCP)"
+        LangString var6              ${LANG_GERMAN}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_GERMAN}  "Die Deinstallation der vorherigen Version ist fehlgeschlagen.$\nBitte deinstallieren Sie ${SOFT_NAME} manuell, bevor Sie fortfahren."
         
         
@@ -187,6 +201,8 @@
         LangString var3              ${LANG_RUSSIAN}  "Примеры штампов"
         LangString var4              ${LANG_RUSSIAN}  "Примеры схем"
         LangString var5              ${LANG_RUSSIAN}  "Шрифты"
+        LangString Mcp               ${LANG_RUSSIAN}  "AI assistant (MCP)"
+        LangString var6              ${LANG_RUSSIAN}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_RUSSIAN}  "Удаление предыдущей версии завершилось с ошибкой.$\nПожалуйста, удалите ${SOFT_NAME} вручную перед продолжением."
         
         
@@ -211,6 +227,8 @@
         LangString var3              ${LANG_ARABIC}  "أمثلة على كتل العنوان"
         LangString var4              ${LANG_ARABIC}  "أمثلة على المخططات"
         LangString var5              ${LANG_ARABIC}  "الخطوط"
+        LangString Mcp               ${LANG_ARABIC}  "AI assistant (MCP)"
+        LangString var6              ${LANG_ARABIC}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_ARABIC}  "فشل إلغاء تثبيت الإصدار السابق. يرجى إلغاء تثبيت ${SOFT_NAME} يدويًا قبل المتابعة."
         
         
@@ -235,6 +253,8 @@
         LangString var3              ${LANG_CATALAN}  "Exemples de cartutxos"
         LangString var4              ${LANG_CATALAN}  "Exemples d'esquemes"
         LangString var5              ${LANG_CATALAN}  "Tipus de lletra"
+        LangString Mcp               ${LANG_CATALAN}  "AI assistant (MCP)"
+        LangString var6              ${LANG_CATALAN}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_CATALAN}  "La desinstal·lació de la versió anterior ha fallat.$\nSi us plau, desinstal·leu ${SOFT_NAME} manualment abans de continuar."
         
         
@@ -259,6 +279,8 @@
         LangString var3              ${LANG_ITALIAN}  "Cartigli di esempio"
         LangString var4              ${LANG_ITALIAN}  "Schemi di esempio"
         LangString var5              ${LANG_ITALIAN}  "Caratteri"
+        LangString Mcp               ${LANG_ITALIAN}  "AI assistant (MCP)"
+        LangString var6              ${LANG_ITALIAN}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_ITALIAN}  "La disinstallazione della versione precedente non è riuscita.$\nSi prega di disinstallare ${SOFT_NAME} manualmente prima di continuare."
         
         
@@ -283,6 +305,8 @@
         LangString var3              ${LANG_PORTUGUESE}  "Exemplos de legendas"
         LangString var4              ${LANG_PORTUGUESE}  "Exemplos de esquemas"
         LangString var5              ${LANG_PORTUGUESE}  "Fontes"
+        LangString Mcp               ${LANG_PORTUGUESE}  "AI assistant (MCP)"
+        LangString var6              ${LANG_PORTUGUESE}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_PORTUGUESE}  "A desinstalação da versão anterior falhou.$\nPor favor, desinstale ${SOFT_NAME} manualmente antes de continuar."
         
         
@@ -307,6 +331,8 @@
         LangString var3              ${LANG_ROMANIAN}  "Exemple de cartușe"
         LangString var4              ${LANG_ROMANIAN}  "Exemple de scheme"
         LangString var5              ${LANG_ROMANIAN}  "Fonturi"
+        LangString Mcp               ${LANG_ROMANIAN}  "AI assistant (MCP)"
+        LangString var6              ${LANG_ROMANIAN}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_ROMANIAN}  "Dezinstalarea versiunii anterioare a eșuat.$\nVă rugăm să dezinstalați ${SOFT_NAME} manual înainte de a continua."
         
         
@@ -331,6 +357,8 @@
         LangString var3              ${LANG_CROATIAN}  "Primjeri zaglavlja"
         LangString var4              ${LANG_CROATIAN}  "Primjeri shema"
         LangString var5              ${LANG_CROATIAN}  "Fontovi"
+        LangString Mcp               ${LANG_CROATIAN}  "AI assistant (MCP)"
+        LangString var6              ${LANG_CROATIAN}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_CROATIAN}  "Deinstalacija prethodne verzije nije uspjela.$\nMolimo deinstalirajte ${SOFT_NAME} ručno prije nastavka."
         
         
@@ -355,6 +383,8 @@
         LangString var3              ${LANG_DUTCH}  "Voorbeelden van titelblokken"
         LangString var4              ${LANG_DUTCH}  "Voorbeelden van schema's"
         LangString var5              ${LANG_DUTCH}  "Lettertypen"
+        LangString Mcp               ${LANG_DUTCH}  "AI assistant (MCP)"
+        LangString var6              ${LANG_DUTCH}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_DUTCH}  "Het verwijderen van de vorige versie is mislukt.$\nVerwijder ${SOFT_NAME} handmatig voordat u verdergaat."
         
         
@@ -379,6 +409,8 @@
         LangString var3              ${LANG_DANISH}  "Titel blokke eksempler"
         LangString var4              ${LANG_DANISH}  "Diagram eksempler"
         LangString var5              ${LANG_DANISH}  "Skrifttyper"
+        LangString Mcp               ${LANG_DANISH}  "AI assistant (MCP)"
+        LangString var6              ${LANG_DANISH}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_DANISH}  "Afinstallation af den tidligere version mislykkedes.$\nAfinstaller venligst ${SOFT_NAME} manuelt, inden du fortsætter."
 
         
diff --git a/build-aux/windows/lang_extra_fr.nsh b/build-aux/windows/lang_extra_fr.nsh
index 322322b7d..dfb527009 100644
--- a/build-aux/windows/lang_extra_fr.nsh
+++ b/build-aux/windows/lang_extra_fr.nsh
@@ -19,4 +19,6 @@
         LangString var3              ${LANG_FRENCH}  "Exemples de cartouches"
         LangString var4              ${LANG_FRENCH}  "Exemples de schémas"
         LangString var5              ${LANG_FRENCH}  "Polices"
+        LangString Mcp               ${LANG_FRENCH}  "Assistant IA (MCP)"
+        LangString var6              ${LANG_FRENCH}  "Permet à un assistant IA d'ouvrir, vérifier et modifier vos schémas (nécessite Python)"
         LangString uninstFailed      ${LANG_FRENCH}  "La désinstallation de la version précédente a échoué.$\nVeuillez désinstaller ${SOFT_NAME} manuellement avant de continuer."
diff --git a/build-aux/windows/lang_extra_missing.nsh b/build-aux/windows/lang_extra_missing.nsh
index 9313f6c90..a4a69bdd3 100644
--- a/build-aux/windows/lang_extra_missing.nsh
+++ b/build-aux/windows/lang_extra_missing.nsh
@@ -25,6 +25,8 @@
         LangString var3              ${LANG_HUNGARIAN}  "Rajzfejléc-példák"
         LangString var4              ${LANG_HUNGARIAN}  "Kapcsolási rajz példák"
         LangString var5              ${LANG_HUNGARIAN}  "Betűtípusok"
+        LangString Mcp               ${LANG_HUNGARIAN}  "AI assistant (MCP)"
+        LangString var6              ${LANG_HUNGARIAN}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_HUNGARIAN}  "Az előző verzió eltávolítása nem sikerült.$\nKérjük, távolítsa el manuálisan a ${SOFT_NAME} programot, mielőtt folytatná."
 
 
@@ -52,6 +54,8 @@
         LangString var3              ${LANG_JAPANESE}  "表題欄の例"
         LangString var4              ${LANG_JAPANESE}  "回路図の例"
         LangString var5              ${LANG_JAPANESE}  "フォント"
+        LangString Mcp               ${LANG_JAPANESE}  "AI assistant (MCP)"
+        LangString var6              ${LANG_JAPANESE}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_JAPANESE}  "前のバージョンのアンインストールに失敗しました。$\n続行する前に、${SOFT_NAME} を手動でアンインストールしてください。"
 
 
@@ -79,6 +83,8 @@
         LangString var3              ${LANG_MONGOLIAN}  "Гарчгийн блокын жишээнүүд"
         LangString var4              ${LANG_MONGOLIAN}  "Схемийн жишээнүүд"
         LangString var5              ${LANG_MONGOLIAN}  "Фонт"
+        LangString Mcp               ${LANG_MONGOLIAN}  "AI assistant (MCP)"
+        LangString var6              ${LANG_MONGOLIAN}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_MONGOLIAN}  "Өмнөх хувилбарыг устгаж чадсангүй.$\nҮргэлжлүүлэхийн өмнө ${SOFT_NAME}-г гараар устгана уу."
 
 
@@ -106,6 +112,8 @@
         LangString var3              ${LANG_NORWEGIAN}  "Eksempler på titelblokker"
         LangString var4              ${LANG_NORWEGIAN}  "Eksempler på skjemaer"
         LangString var5              ${LANG_NORWEGIAN}  "Skrifttyper"
+        LangString Mcp               ${LANG_NORWEGIAN}  "AI assistant (MCP)"
+        LangString var6              ${LANG_NORWEGIAN}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_NORWEGIAN}  "Avinstallasjon av forrige versjon mislyktes.$\nVennligst avinstaller ${SOFT_NAME} manuelt før du fortsetter."
 
 
@@ -143,6 +151,8 @@
         LangString var3              ${LANG_PORTUGUESEBR}  "Exemplos de legendas"
         LangString var4              ${LANG_PORTUGUESEBR}  "Exemplos de esquemas"
         LangString var5              ${LANG_PORTUGUESEBR}  "Fontes"
+        LangString Mcp               ${LANG_PORTUGUESEBR}  "AI assistant (MCP)"
+        LangString var6              ${LANG_PORTUGUESEBR}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_PORTUGUESEBR}  "A desinstalação da versão anterior falhou.$\nPor favor, desinstale ${SOFT_NAME} manualmente antes de continuar."
 
 
@@ -170,6 +180,8 @@
         LangString var3              ${LANG_SERBIAN}  "Примери заглавља"
         LangString var4              ${LANG_SERBIAN}  "Примери шема"
         LangString var5              ${LANG_SERBIAN}  "Фонтови"
+        LangString Mcp               ${LANG_SERBIAN}  "AI assistant (MCP)"
+        LangString var6              ${LANG_SERBIAN}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_SERBIAN}  "Деинсталација претходне верзије није успела.$\nМолимо деинсталирајте ${SOFT_NAME} ручно пре наставка."
 
 
@@ -197,6 +209,8 @@
         LangString var3              ${LANG_SLOVAK}  "Príklady popisových polí"
         LangString var4              ${LANG_SLOVAK}  "Príklady schém"
         LangString var5              ${LANG_SLOVAK}  "Písma"
+        LangString Mcp               ${LANG_SLOVAK}  "AI assistant (MCP)"
+        LangString var6              ${LANG_SLOVAK}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_SLOVAK}  "Odinštalovanie predchádzajúcej verzie zlyhalo.$\nPred pokračovaním odinštalujte ${SOFT_NAME} ručne."
 
 
@@ -224,6 +238,8 @@
         LangString var3              ${LANG_SLOVENIAN}  "Primeri glav risb"
         LangString var4              ${LANG_SLOVENIAN}  "Primeri shem"
         LangString var5              ${LANG_SLOVENIAN}  "Pisave"
+        LangString Mcp               ${LANG_SLOVENIAN}  "AI assistant (MCP)"
+        LangString var6              ${LANG_SLOVENIAN}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_SLOVENIAN}  "Odstranitev prejšnje različice ni uspela.$\nPred nadaljevanjem ročno odstranite ${SOFT_NAME}."
 
 
@@ -251,6 +267,8 @@
         LangString var3              ${LANG_SWEDISH}  "Exempel på ritningshuvuden"
         LangString var4              ${LANG_SWEDISH}  "Exempel på scheman"
         LangString var5              ${LANG_SWEDISH}  "Teckensnitt"
+        LangString Mcp               ${LANG_SWEDISH}  "AI assistant (MCP)"
+        LangString var6              ${LANG_SWEDISH}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_SWEDISH}  "Avinstallationen av den föregående versionen misslyckades.$\nAvinstallera ${SOFT_NAME} manuellt innan du fortsätter."
 
 
@@ -278,6 +296,8 @@
         LangString var3              ${LANG_TURKISH}  "Başlık bloğu örnekleri"
         LangString var4              ${LANG_TURKISH}  "Şema örnekleri"
         LangString var5              ${LANG_TURKISH}  "Yazı Tipleri"
+        LangString Mcp               ${LANG_TURKISH}  "AI assistant (MCP)"
+        LangString var6              ${LANG_TURKISH}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_TURKISH}  "Önceki sürümün kaldırılması başarısız oldu.$\nDevam etmeden önce lütfen ${SOFT_NAME}'i manuel olarak kaldırın."
 
 
@@ -305,6 +325,8 @@
         LangString var3              ${LANG_UKRAINIAN}  "Приклади штампів"
         LangString var4              ${LANG_UKRAINIAN}  "Приклади схем"
         LangString var5              ${LANG_UKRAINIAN}  "Шрифти"
+        LangString Mcp               ${LANG_UKRAINIAN}  "AI assistant (MCP)"
+        LangString var6              ${LANG_UKRAINIAN}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_UKRAINIAN}  "Видалення попередньої версії завершилося помилкою.$\nБудь ласка, видаліть ${SOFT_NAME} вручну перед продовженням."
 
 
@@ -332,4 +354,6 @@
         LangString var3              ${LANG_SIMPCHINESE}  "标题栏示例"
         LangString var4              ${LANG_SIMPCHINESE}  "图纸示例"
         LangString var5              ${LANG_SIMPCHINESE}  "字体"
+        LangString Mcp               ${LANG_SIMPCHINESE}  "AI assistant (MCP)"
+        LangString var6              ${LANG_SIMPCHINESE}  "Lets an AI assistant open, check and edit your drawings (needs Python)"
         LangString uninstFailed      ${LANG_SIMPCHINESE}  "卸载旧版本失败。$\n请在继续之前手动卸载 ${SOFT_NAME}。"
diff --git a/misc/qet-mcp/README.md b/misc/qet-mcp/README.md
index f0640ea4f..3c082ace9 100644
--- a/misc/qet-mcp/README.md
+++ b/misc/qet-mcp/README.md
@@ -82,6 +82,28 @@ Register it with an MCP client, for example:
 QElectroTech (as `<prefix>/share/qelectrotech/mcp/qet_mcp.py`, which also
 finds the installed element collection).
 
+## Installed with QElectroTech
+
+QElectroTech's packages install the server next to the program, and from
+there it finds that QElectroTech and its element collection by itself:
+
+| Package | Server | Finds |
+|---|---|---|
+| `make install`, Linux distributions | `<prefix>/share/qelectrotech/mcp/qet_mcp.py` | `<prefix>/bin/qelectrotech`, `<prefix>/share/qelectrotech/elements` |
+| Windows installer, MSI, portable folder | `<folder>\mcp\qet_mcp.py` (the "AI assistant (MCP)" component) | `<folder>\bin\QElectroTech.exe`, `<folder>\elements` |
+
+So a client configuration needs only the path to the server and the
+workspace, for example on Windows:
+
+```json
+"args": ["C:\\Program Files\\QElectroTech\\mcp\\qet_mcp.py"]
+```
+
+Snap and flatpak install it too. Their QElectroTech is built to run inside
+the package's sandbox, and starting it from the server has not been tested:
+the tools that read a file work, exports and edits may not. If they fail,
+point `QET_BINARY` at a QElectroTech installed another way.
+
 ## Using it from the Claude app
 
 A web chat in a browser cannot start a program on your computer, so it
diff --git a/misc/qet-mcp/qet_mcp.py b/misc/qet-mcp/qet_mcp.py
index 485a53bf8..ce11cd467 100755
--- a/misc/qet-mcp/qet_mcp.py
+++ b/misc/qet-mcp/qet_mcp.py
@@ -3189,12 +3189,24 @@ def _env_paths(name: str) -> list:
     return out
 
 
-def _installed_prefix() -> Path | None:
-    """The install prefix when this script is <prefix>/share/qelectrotech/mcp/."""
+def _installation() -> tuple | None:
+    """(program directory, element collection) of the QElectroTech this
+    script was installed with, or None when it runs from anywhere else.
+
+    Two layouts, both put there by QElectroTech's own packaging:
+      <prefix>/share/qelectrotech/mcp/  -> <prefix>/bin, <prefix>/share/qelectrotech/elements
+                                           (make install: Linux, snap, flatpak, macOS)
+      <root>/mcp/                       -> <root>/bin, <root>/elements
+                                           (the Windows installers and portable folder)
+    """
     here = Path(__file__).resolve().parent
-    if here.name == "mcp" and here.parent.name == "qelectrotech" \
-            and here.parent.parent.name == "share":
-        return here.parent.parent.parent
+    if here.name != "mcp":
+        return None
+    if here.parent.name == "qelectrotech" and here.parent.parent.name == "share":
+        prefix = here.parent.parent.parent
+        return prefix / "bin", here.parent / "elements"
+    if (here.parent / "bin").is_dir():
+        return here.parent / "bin", here.parent / "elements"
     return None
 
 
@@ -3208,10 +3220,12 @@ def resolve_binary() -> Path | None:
     env = os.environ.get("QET_BINARY", "").strip()
     if env:
         return Path(env).expanduser().resolve()
-    prefix = _installed_prefix()
-    if prefix is not None:
-        for name in ("qelectrotech", "qelectrotech.exe"):
-            cand = prefix / "bin" / name
+    install = _installation()
+    if install is not None:
+        # The Windows build names it QElectroTech.exe; only a case-sensitive
+        # file system tells the spellings apart.
+        for name in ("qelectrotech", "qelectrotech.exe", "QElectroTech.exe"):
+            cand = install[0] / name
             if cand.is_file():
                 return cand.resolve()
     found = shutil.which("qelectrotech")
@@ -3220,11 +3234,9 @@ def resolve_binary() -> Path | None:
 
 def default_elements_dir() -> Path | None:
     """The element collection of the install this script ships in, if any."""
-    prefix = _installed_prefix()
-    if prefix is not None:
-        coll = prefix / "share" / "qelectrotech" / "elements"
-        if coll.is_dir():
-            return coll.resolve()
+    install = _installation()
+    if install is not None and install[1].is_dir():
+        return install[1].resolve()
     return None
 
 
diff --git a/misc/qet-mcp/test_qet_mcp.py b/misc/qet-mcp/test_qet_mcp.py
index 6c98569d8..875da3324 100644
--- a/misc/qet-mcp/test_qet_mcp.py
+++ b/misc/qet-mcp/test_qet_mcp.py
@@ -2021,6 +2021,43 @@ class BinaryPolicy(unittest.TestCase):
         self.assertEqual(args["elements_dir"],
                          str((prefix / "share" / "qelectrotech" / "elements").resolve()))
 
+    def installed_at(self, root: Path, mcp: Path):
+        """Import a copy of the server placed at mcp/qet_mcp.py."""
+        import importlib.util
+        mcp.mkdir(parents=True)
+        shutil.copy2(HERE / "qet_mcp.py", mcp / "qet_mcp.py")
+        spec = importlib.util.spec_from_file_location(f"qet_mcp_{root.name}", mcp / "qet_mcp.py")
+        inst = importlib.util.module_from_spec(spec)
+        spec.loader.exec_module(inst)
+        return inst
+
+    def test_the_windows_layout_is_found_too(self):
+        """The Windows installers and the portable folder put the server in
+        <root>/mcp, the program in <root>/bin as QElectroTech.exe, and the
+        collection in <root>/elements."""
+        root = Path(self.tmp.name) / "QElectroTech"
+        (root / "elements").mkdir(parents=True)
+        exe = fake_qet(root / "bin", "QElectroTech.exe")
+        inst = self.installed_at(root, root / "mcp")
+        del os.environ["QET_BINARY"]
+        args = {"project": str(self.root / "ok.qet")}
+        inst.enforce_path_policy("qet_query", args)
+        self.assertEqual(args["binary"], str(exe.resolve()))
+        self.assertEqual(args["elements_dir"], str((root / "elements").resolve()))
+
+    def test_a_copy_saved_anywhere_is_not_an_install(self):
+        """A downloaded copy sitting beside some bin/ folder must not go
+        looking for QElectroTech there."""
+        home = Path(self.tmp.name) / "home"
+        fake_qet(home / "bin")
+        inst = self.installed_at(home, home / "Downloads")
+        self.assertIsNone(inst._installation())
+
+    def test_a_folder_named_mcp_is_not_an_install(self):
+        """Without a bin/ beside it, an mcp/ folder is just a folder."""
+        inst = self.installed_at(Path(self.tmp.name) / "x", Path(self.tmp.name) / "x" / "mcp")
+        self.assertIsNone(inst._installation())
+
 
 class ScriptingDisabledHint(unittest.TestCase):
     """QElectroTech may refuse to run scripts at all, and says so in French.