Batman Arkham City .net Framework Error Windows 10 Better < LIMITED — Bundle >
The .NET Framework error in Batman: Arkham City on Windows 10 is typically caused by the game requiring older versions of the software (specifically .NET Framework 3.5 ) that are not enabled by default in modern Windows environments . 1. Enable .NET Framework 3.5 The most common fix is manually enabling the required version through Windows Features. Open the Start menu , type "Turn Windows features on or off," and select it. Locate .NET Framework 3.5 (includes .NET 2.0 and 3.0) in the list. Check the box next to it and click OK . Windows will download and install the necessary files. Restart your PC once complete. 2. Install Legacy Redistributables Sometimes the error stems from missing legacy drivers that modern versions of DirectX and PhysX do not include by default. Navigate to your game's installation folder (e.g., Steam\steamapps\common\Batman Arkham City GOTY\Setup ). Run the following installers manually as an Administrator : dotnetfx35.exe (Legacy .NET Framework) DXSETUP.exe (found in the DxRedist folder) vcredist_x86.exe (Visual C++ Redistributable) PhysX_SystemSoftware.exe (Legacy PhysX) 3. Use Compatibility Mode Since the game was built for older operating systems, modern Windows optimizations can sometimes trigger runtime errors. Guide :: Microsoft .NET Framework Error on Windows 10 / 11 FIX
Here’s a good, clear write-up you can use (for a forum, blog, or support ticket) to explain and fix the “.NET Framework” error when launching Batman: Arkham City on Windows 10.
Title: Fix “.NET Framework Error” in Batman: Arkham City on Windows 10 The Problem When launching Batman: Arkham City (usually the Steam or GFWL version), you may see a pop-up error similar to:
“Unhandled exception has occurred in your application… Could not load file or assembly ‘System.Core, Version=3.5.0.0’…” or “Your .NET Framework is missing or corrupted.” batman arkham city .net framework error windows 10
The game then fails to start or crashes immediately. Why It Happens
Arkham City was built for .NET Framework 3.5 , which is not enabled by default on Windows 10. Some game launchers (especially older Steam versions) try to call .NET 3.5 libraries, but Windows 10 uses .NET 4.x by default. The error can also appear if the required VC++ Redistributables are missing, because the launcher depends on them for the error dialog itself.
The Fix (Step by Step) 1. Enable .NET Framework 3.5 Open the Start menu , type "Turn Windows
Press Win + R , type control , and press Enter. Go to Programs → Turn Windows features on or off . Check .NET Framework 3.5 (includes .NET 2.0 and 3.0) . Click OK and let Windows install it (requires internet).
2. Install the correct .NET 3.5 directly (if step 1 fails) Download the offline installer from Microsoft: .NET Framework 3.5 Service Pack 1 (run as admin). 3. Install missing Visual C++ Redistributables The game needs both 32-bit and 64-bit versions of:
VC++ 2008 (SP1) – [Microsoft download link] VC++ 2010 (SP1) – [Microsoft download link] Windows will download and install the necessary files
Get them from Microsoft’s official “Latest supported Visual C++ downloads” page. 4. Run the game in compatibility mode
Right-click BatmanAC.exe or BmLauncher.exe → Properties → Compatibility . Check Run this program in compatibility mode for : Windows 7. Check Run as administrator . Apply → OK.
