diff --git a/ReleaseGenerators/PascalABCNETMini.nsi b/ReleaseGenerators/PascalABCNETMini.nsi
index 34c2a96a7..8acdbdcb2 100644
--- a/ReleaseGenerators/PascalABCNETMini.nsi
+++ b/ReleaseGenerators/PascalABCNETMini.nsi
@@ -3,6 +3,7 @@ OutFile "..\Release\PascalABCNETMiniSetup.exe"
 !include PascalABCNET_head.nsh
 !include PascalABCNET_sections_min.nsh
 !include PascalABCNET_end.nsh
+!include "nsProcess.nsh"
 
 Function .onInit
 	IfFileExists "$WINDIR\Microsoft.NET\Framework\v4.0.30319\System.dll" +3 0
@@ -11,4 +12,11 @@ Function .onInit
 	!insertmacro MUI_LANGDLL_DISPLAY
 	Goto exit
 	exit:
+checkprocess:
+    ${nsProcess::FindProcess} "PascalABCNET.exe" $R0
+    StrCmp $R0 0 0 notRunning
+    MessageBox MB_RETRYCANCEL|MB_ICONEXCLAMATION $(DESC_IsRunning) IDRETRY checkprocess IDCANCEL end
+    end: 
+    Abort
+notRunning:
 FunctionEnd
\ No newline at end of file
diff --git a/ReleaseGenerators/PascalABCNETStandart.nsi b/ReleaseGenerators/PascalABCNETStandart.nsi
index f10b93309..235421773 100644
--- a/ReleaseGenerators/PascalABCNETStandart.nsi
+++ b/ReleaseGenerators/PascalABCNETStandart.nsi
@@ -3,6 +3,7 @@ OutFile "..\Release\PascalABCNETSetup.exe"
 !include PascalABCNET_head.nsh
 !include PascalABCNET_sections.nsh
 !include PascalABCNET_end.nsh
+!include "nsProcess.nsh"
 
 Function .onInit
 	IfFileExists "$WINDIR\Microsoft.NET\Framework\v4.0.30319\System.dll" +3 0
@@ -10,5 +11,12 @@ Function .onInit
 	Abort
 	!insertmacro MUI_LANGDLL_DISPLAY
 	Goto exit
-	exit:
+exit:
+checkprocess:
+    ${nsProcess::FindProcess} "PascalABCNET.exe" $R0
+    StrCmp $R0 0 0 notRunning
+    MessageBox MB_RETRYCANCEL|MB_ICONEXCLAMATION $(DESC_IsRunning) IDRETRY checkprocess IDCANCEL end
+    end: 
+    Abort
+notRunning:
 FunctionEnd
\ No newline at end of file
diff --git a/ReleaseGenerators/PascalABCNET_end.nsh b/ReleaseGenerators/PascalABCNET_end.nsh
index 9d58fdf19..ae6c116c9 100644
--- a/ReleaseGenerators/PascalABCNET_end.nsh
+++ b/ReleaseGenerators/PascalABCNET_end.nsh
@@ -51,7 +51,7 @@ SectionEnd
 
 ;Function .onInit
 
-;  !insertmacro MUI_LANGDLL_DISPLAY
+
   
 ;FunctionEnd
 
@@ -100,8 +100,8 @@ SectionEnd
   LangString DESC_ConsoleCompiler_Desc ${LANG_ENGLISH} " "
   LangString DESC_INTERNAL_ERROR_REPORT_Desc ${LANG_RUSSIAN} "Позволяет отправить разработчикам отчет о ошибках в работе компилятора"
   LangString DESC_INTERNAL_ERROR_REPORT_Desc ${LANG_ENGLISH} " "
-  LangString DESC_PT4_Desc ${LANG_RUSSIAN} "Электронный задачник Programming Taskbook Copyright (c)М.Э.Абрамян, 1998-2014"
-  LangString DESC_PT4_Desc ${LANG_ENGLISH} "Programming Taskbook Copyright (c) M.E. Abramyan, 1998-2014"
+  LangString DESC_PT4_Desc ${LANG_RUSSIAN} "Электронный задачник Programming Taskbook Copyright (c)М.Э.Абрамян, 1998-2017"
+  LangString DESC_PT4_Desc ${LANG_ENGLISH} "Programming Taskbook Copyright (c) M.E. Abramyan, 1998-2017"
   LangString DESC_Samples_Desc ${LANG_RUSSIAN} "Файлы примеров"
   LangString DESC_Samples_Desc ${LANG_ENGLISH} "Samples"
   LangString DESC_RusLoc_Desc ${LANG_RUSSIAN} "Поддержка русcкого языка"
@@ -136,6 +136,8 @@ SectionEnd
   LangString DESC_Remove ${LANG_ENGLISH} "Remove"
   LangString DESC_PT4Setup ${LANG_RUSSIAN} "Настройка задачника PT4"
   LangString DESC_PT4Setup ${LANG_ENGLISH} "PT4 Setup"
+  LangString DESC_IsRunning ${LANG_RUSSIAN} "Невозможно начать установку, так как запущена среда PascalABC.NET. Закройте PascalABC.NET и нажмите Повторить"
+  LangString DESC_IsRunning ${LANG_ENGLISH} "PascalABC.NET is running. Please close it first"
   LicenseLangString MUILicense ${LANG_RUSSIAN} "License.rtf"
   LicenseLangString MUILicense ${LANG_ENGLISH} "License_en.rtf"
 
diff --git a/ReleaseGenerators/nsProcess.nsh b/ReleaseGenerators/nsProcess.nsh
new file mode 100644
index 000000000..9ef6098d2
--- /dev/null
+++ b/ReleaseGenerators/nsProcess.nsh
@@ -0,0 +1,28 @@
+!define nsProcess::FindProcess `!insertmacro nsProcess::FindProcess`
+
+!macro nsProcess::FindProcess _FILE _ERR
+	nsProcess::_FindProcess /NOUNLOAD `${_FILE}`
+	Pop ${_ERR}
+!macroend
+
+
+!define nsProcess::KillProcess `!insertmacro nsProcess::KillProcess`
+
+!macro nsProcess::KillProcess _FILE _ERR
+	nsProcess::_KillProcess /NOUNLOAD `${_FILE}`
+	Pop ${_ERR}
+!macroend
+
+!define nsProcess::CloseProcess `!insertmacro nsProcess::CloseProcess`
+
+!macro nsProcess::CloseProcess _FILE _ERR
+	nsProcess::_CloseProcess /NOUNLOAD `${_FILE}`
+	Pop ${_ERR}
+!macroend
+
+
+!define nsProcess::Unload `!insertmacro nsProcess::Unload`
+
+!macro nsProcess::Unload
+	nsProcess::_Unload
+!macroend
diff --git a/Utils/NSIS/Unicode/Plugins/FindProcDLL.dll b/Utils/NSIS/Unicode/Plugins/FindProcDLL.dll
new file mode 100644
index 000000000..22c8398f1
Binary files /dev/null and b/Utils/NSIS/Unicode/Plugins/FindProcDLL.dll differ
diff --git a/Utils/NSIS/Unicode/Plugins/nsProcess.dll b/Utils/NSIS/Unicode/Plugins/nsProcess.dll
new file mode 100644
index 000000000..2478624ee
Binary files /dev/null and b/Utils/NSIS/Unicode/Plugins/nsProcess.dll differ