Load software on WinXP SR2

[brown]

My ActiveHome installation has not worked
since I loaded WinXP SP2.  When i try to
install I get an error window
"C:\WINDOWS\SYSTEM32\AUTOEXEC.NT The system
file is not suitable for running MS-DOS and
Microsoft Windows applications."
Any idea what is corrupted and/or what my
next step would be?
Thanks

[brown]

I finally found an earlier post - sorry for
wasting the bandwidth.