Add Visual C++ Redistributables check to Windows installer

- Added IsVCRedistInstalled() function to check for VC++ runtime
- Shows warning dialog if VC++ Redistributables are not detected
- Helps prevent 'create process failed; code 2' errors
- Users are informed they need to install VC++ Redistributables

Author: Tajudeen

build/win32/code.iss

@@ -1304,6 +1304,28 @@ begin
   Result := not IsBackgroundUpdate();
 end;
 
+// Check if Visual C++ Redistributables are installed
+function IsVCRedistInstalled(): Boolean;
+var
+  Version: String;
+begin
+  Result := False;
+  // Check for Visual C++ 2015-2022 Redistributable (x64)
+  #if "x64" == Arch
+    if RegQueryStringValue(HKLM, 'SOFTWARE\Microsoft\VisualStudio\14.0\VC\Runtimes\x64', 'Version', Version) or
+       RegQueryStringValue(HKLM, 'SOFTWARE\WOW6432Node\Microsoft\VisualStudio\14.0\VC\Runtimes\x64', 'Version', Version) then begin
+      Result := True;
+    end;
+  #endif
+  // Check for Visual C++ 2015-2022 Redistributable (ARM64)
+  #if "arm64" == Arch
+    if RegQueryStringValue(HKLM, 'SOFTWARE\Microsoft\VisualStudio\14.0\VC\Runtimes\ARM64', 'Version', Version) or
+       RegQueryStringValue(HKLM, 'SOFTWARE\WOW6432Node\Microsoft\VisualStudio\14.0\VC\Runtimes\ARM64', 'Version', Version) then begin
+      Result := True;
+    end;
+  #endif
+end;
+
 // Don't allow installing conflicting architectures
 function InitializeSetup(): Boolean;
 var
@@ -1313,6 +1335,17 @@ var
 begin
   Result := True;
 
+  // Check for Visual C++ Redistributables
+  if not IsVCRedistInstalled() and not WizardSilent() then begin
+    if MsgBox('Visual C++ Redistributables are not detected on this system. ' +
+              'CortexIDE requires Visual C++ Redistributables to run properly. ' +
+              'You can download them from: https://aka.ms/vs/17/release/vc_redist.x64.exe' + #13#10 + #13#10 +
+              'Do you want to continue with the installation anyway?', 
+              mbConfirmation, MB_YESNO) = IDNO then begin
+      Result := False;
+    end;
+  end;
+
   #if "user" == InstallTarget
     if not WizardSilent() and IsAdmin() then begin
       if MsgBox('This User Installer is not meant to be run as an Administrator. If you would like to install VS Code for all users in this system, download the System Installer instead from https://code.visualstudio.com. Are you sure you want to continue?', mbError, MB_OKCANCEL) = IDCANCEL then begin