diff --git a/.github/workflows/windows-build.yml b/.github/workflows/windows-build.yml
index 15258ad8..2b97d6e2 100644
--- a/.github/workflows/windows-build.yml
+++ b/.github/workflows/windows-build.yml
@@ -73,7 +73,7 @@ jobs:
           python -m pip install cffi
 
           Invoke-WebRequest https://github.com/ZoiteChat/gvsbuild/releases/download/zoitechat-2.18.0-pre1/gtk-x64-2026.7z -OutFile deps\gtk.7z
-          & 7z.exe x deps\gtk.7z -oC:\gtk-build
+          & 7z.exe x deps\gtk.7z -oC:\gtk-build\gtk
 
           if ("${{ matrix.platform }}" -eq "win32" -and (Test-Path "C:\gtk-build\gtk\x86")) {
             $gtkRoot = "C:\gtk-build\gtk"
diff --git a/win32/zoitechat.props b/win32/zoitechat.props
index bb9de611..e38c2606 100644
--- a/win32/zoitechat.props
+++ b/win32/zoitechat.props
@@ -107,10 +107,10 @@
 		<ZoiteChatPdb>$(ZoiteChatBuild)\$(PlatformName)\pdb\</ZoiteChatPdb>
 		<ZoiteChatRel>$(ZoiteChatBuild)\$(PlatformName)\rel\</ZoiteChatRel>
 		<IsccPath Condition="'$(IsccPath)'=='' and '$(ZOITECHAT_ISCC_PATH)'!=''">$(ZOITECHAT_ISCC_PATH)</IsccPath>
-		<IsccPath Condition="'$(IsccPath)'=='' and Exists('$(ProgramFiles)\Inno Setup 6\iscc.exe')">$(ProgramFiles)\Inno Setup 6\iscc.exe</IsccPath>
-		<IsccPath Condition="'$(IsccPath)'=='' and '$(ProgramFiles(x86))'!='' and Exists('$(ProgramFiles(x86))\Inno Setup 6\iscc.exe')">$(ProgramFiles(x86))\Inno Setup 6\iscc.exe</IsccPath>
-		<IsccPath Condition="'$(IsccPath)'=='' and Exists('$(ProgramW6432)\Inno Setup 6\iscc.exe')">$(ProgramW6432)\Inno Setup 6\iscc.exe</IsccPath>
-		<IsccPath Condition="'$(IsccPath)'==''">$(ProgramFiles)\Inno Setup 6\iscc.exe</IsccPath>
+		<IsccPath Condition="'$(IsccPath)'=='' and Exists('$(ProgramFiles)\Inno Setup 6\iscc.exe')">$(ProgramFiles)\Inno Setup 5\iscc.exe</IsccPath>
+		<IsccPath Condition="'$(IsccPath)'=='' and '$(ProgramFiles(x86))'!='' and Exists('$(ProgramFiles(x86))\Inno Setup 5\iscc.exe')">$(ProgramFiles(x86))\Inno Setup 5\iscc.exe</IsccPath>
+		<IsccPath Condition="'$(IsccPath)'=='' and Exists('$(ProgramW6432)\Inno Setup 5\iscc.exe')">$(ProgramW6432)\Inno Setup 5\iscc.exe</IsccPath>
+		<IsccPath Condition="'$(IsccPath)'==''">$(ProgramFiles)\Inno Setup 5\iscc.exe</IsccPath>
 	</PropertyGroup>
 
 	<PropertyGroup>