diff --git a/win32/installer/installer.vcxproj b/win32/installer/installer.vcxproj
index c919d57c..be8b066f 100644
--- a/win32/installer/installer.vcxproj
+++ b/win32/installer/installer.vcxproj
@@ -25,6 +25,9 @@
   <PropertyGroup>
     <OutDir>$(ZoiteChatRel)</OutDir>
   </PropertyGroup>
+<PropertyGroup>
+  <IsccPath Condition="'$(IsccPath)'==''">$(ProgramFiles(x86))\Inno Setup 5\ISCC.exe</IsccPath>
+</PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)'=='Release'">
     <ClCompile>
     </ClCompile>
@@ -36,12 +39,9 @@
     <PreBuildEvent>
       <Command>
       <![CDATA[
-set "SOLUTIONDIR=$(SolutionDir)..\"
-
-powershell -NoProfile -ExecutionPolicy Bypass -File "%SOLUTIONDIR%win32\version-template.ps1" "%SOLUTIONDIR%win32\installer\zoitechat.iss.tt" "$(ZoiteChatBin)zoitechat.iss" ^
-&& if /I "$(Platform)"=="Win32" (set "APPARCH=x86") else (set "APPARCH=x64") ^
-&& if not exist "$(IsccPath)" (echo ISCC not found: $(IsccPath) & exit /b 9009) ^
-&& "$(IsccPath)" /dPROJECTDIR="$(ProjectDir)" /dAPPARCH="%APPARCH%" "$(ZoiteChatBin)zoitechat.iss"
+SET SOLUTIONDIR=$(SolutionDir)..\
+powershell -File "$(SolutionDir)..\win32\version-template.ps1" "$(SolutionDir)..\win32\installer\zoitechat.iss.tt" "$(ZoiteChatBin)zoitechat.iss"
+$(IsccPath) /dPROJECTDIR="$(ProjectDir)" /dAPPARCH="$(Platform)" "$(ZoiteChatBin)zoitechat.iss"
       ]]>
       </Command>
     </PreBuildEvent>
@@ -55,3 +55,4 @@ powershell -NoProfile -ExecutionPolicy Bypass -File "%SOLUTIONDIR%win32\version-
 </Project>
 
 
+