4 files changed, 26 insertions, 0 deletions
diff --git a/.gitlab/.gitignore b/.gitlab/.gitignore
index 10d03cacd4..381d8fea96 100644
--- a/.gitlab/.gitignore
+++ b/.gitlab/.gitignore
@@ -3,6 +3,7 @@
 /bcc*
 /cmake*
 /ispc*
+/innosetup
 /jom
 /llvm*
 /mingw
diff --git a/.gitlab/ci/env_windows_vs2022_x64_ninja.ps1 b/.gitlab/ci/env_windows_vs2022_x64_ninja.ps1
index a96658dd0f..50a03ca828 100755
--- a/.gitlab/ci/env_windows_vs2022_x64_ninja.ps1
+++ b/.gitlab/ci/env_windows_vs2022_x64_ninja.ps1
@@ -1,3 +1,4 @@
 if ("$env:CMAKE_CI_NIGHTLY" -eq "true") {
+  . ".gitlab/ci/innosetup-env.ps1"
   . ".gitlab/ci/ispc-env.ps1"
 }
diff --git a/.gitlab/ci/innosetup-env.ps1 b/.gitlab/ci/innosetup-env.ps1
new file mode 100755
index 0000000000..96e9d8c322
--- /dev/null
+++ b/.gitlab/ci/innosetup-env.ps1
@@ -0,0 +1,4 @@
+$pwdpath = $pwd.Path
+& "$pwsh" -File ".gitlab/ci/innosetup.ps1"
+Set-Item -Force -Path "env:PATH" -Value "$pwdpath\.gitlab\innosetup;$env:PATH"
+ISCC 2>$null | Select -First 1
diff --git a/.gitlab/ci/innosetup.ps1 b/.gitlab/ci/innosetup.ps1
new file mode 100755
index 0000000000..a7f4eb31c3
--- /dev/null
+++ b/.gitlab/ci/innosetup.ps1
@@ -0,0 +1,20 @@
+$erroractionpreference = "stop"
+
+$version = "6.2.2-1"
+$sha256sum = "34D5311070678617424628A88C8A7F7BE41157B1A59112F9DFDA1D7EFD4469CC"
+$filename = "innosetup-$version"
+$tarball = "$filename.zip"
+
+$outdir = $pwd.Path
+$outdir = "$outdir\.gitlab"
+$ProgressPreference = 'SilentlyContinue'
+Invoke-WebRequest -Uri "https://cmake.org/files/dependencies/internal/$tarball" -OutFile "$outdir\$tarball"
+$hash = Get-FileHash "$outdir\$tarball" -Algorithm SHA256
+if ($hash.Hash -ne $sha256sum) {
+    exit 1
+}
+
+Add-Type -AssemblyName System.IO.Compression.FileSystem
+[System.IO.Compression.ZipFile]::ExtractToDirectory("$outdir\$tarball", "$outdir")
+Move-Item -Path "$outdir\$filename" -Destination "$outdir\innosetup"
+Remove-Item "$outdir\$tarball"