ERROR please help me

This happens when I try to install games
16 bit Windows Subsystem

C:\WINDOWS\SYSTEM32\CONFIG.NT.

The system file is not suitable for runniung MS-DOS and Microsoft Windows applications.

This only happens when I try to install games that were made about 3 years ago. Please reply if u can help me PLZ.

This Microsoft knowledge base article discusses the problem and provides a fix
http://support.microsoft.com/default.aspx?scid=kb;en-us;324767