If you have had the problem of MCE2004 or MCE2005 where you get the above error (or something like it; I don't remember the exact message" and are not able to play DVDs or Videos, here is how you fix it.

1. Make sure you have the .Net Framework 1.1 or 2.0 BETA. Then download the SDK for your version. They can all be download from The Microsoft Download Center

2. Copy ehshell.exe (in the %windir%\ehome) directory to a tempory location.

3. In C:\Program Files\Microsoft.NET\SDK\(either v1.1 or v2.0)\bin folder (or wherever you installed the SDK), open ildasm.exe.

4. Click File>Open and open ehshell.exe in your temporary directory.

5. Click File>Dump. Check only Dump IL code and Expand try/catch. Click OK. Once that process is finished, close ildasm.exe.

6. Open Notepad. Browse to your the temp directory that ehshell is, and you should see two new files, ehshell.il and ehshell.res. Open ehshell.il. This may take a while, depending on the power of your computer.

7. Search for the string get_UsableVideoMemory in the file. Just below that, you should see the value 0x2000000. Change that to 0x1000000. Save the file and close notepad.

8. Go to your temp directory, and delete the copy of ehshell.exe that you have.

9. Using the Open Command Window Here powertoy, open Command Prompt to your tempory directory. Type "C:\WINDOWS\Microsoft.NET\Framework\(v1.1.4322 or v2.0.40607)" \ilasm /resource:ehshell.res /exe ehshell.il and press enter. If this process fails, download a new version of ehshell.res Here, and replace the old version with this version.

10. Start Safe Mode

11. Backup your old ehshell.exe in the ehome directory to a different folder.

12. Copy and paste the new ehshell.exe from your temp directory to the ehome directory, replacing the old version (MAKE SURE YOUR OLD VERSION IS BACKED UP!!!!!).

13. Boot the computer again normally.

14. Start Command Prompt at the ehome directory.

15. "C:\Program Files\Microsoft .NET\FrameworkSDK\(v1.1 or v2.0)\bin\sn -Vr ehshell.exe

Now You Should have a completely working version of Media Center 2004 or 2005!