Vista Users: If you're a vista user you might need to have your UAC (User Account Control) disabled. How to disable UAC:
1. Go to control panel (Press start -> Control Panel)
2. Click "User Accounts and Family Safety"
3. Click "User Account" and at the bottom you should see "Turn User Account Safety on or off" now click that.
4. Now uncheck the box and press "Ok" then restart. If it's already unchecked then it's already disabled.
Before opening the MPGH 1.05.exe right click it first then click "Properties" -> "compatibility" and set the compatibility mode to "Windows XP SP2" then press "Ok".
Then right click MPGH 1.05.exe then click "Run as Administrator"