I’ve been having trouble every time I try to open file from my CDs. I am using MS Office Professional and Windows Xp. What ever CD I try to run gives me the following message: 16 bit windows subsystem: C:\WINDOWS\SYSTEM32\AUTOEXEC.NT. The system file is not suitable for running MS-DOS and Microsoft windows application. Choose ‘close’ to terminate the application. What should I do? Please advise….