DOS Restrictions

There are restrictions you can make to the ability to execute DOS programs

1. Start Regedit
2. Go to HKEY_Current_User / Software / Microsoft / Windows / CurrentVersion / Policies
3. Create a new key under Policies called WinOldApp
4. You can then add DWORD values set to 1 in the appropriate keys
5. To re-enable them, either delete the key or set the value to 0

* Disabled - Disable MS-DOS Prompt
* NoRealMode - Disables Single-Mode MS-DOS