SQRW not a valid Windows NT application

["Schelske, Steve K." <SKSchelske@AAAMICHIGAN.COM>]

I'm trying to run SQRW from Windows Explorer and I get the following message
in an error dialog:

q:\fsdev\ifs\sqrbinw\sqrw.exe is not a valid Windows NT application.

I can copy sqrw.exe to a different directory and it works fine.  I can copy
a working sqrw.exe into q:\fsdev\ifs\sqrbinw and it fails with the same
error.  I tried reinstalling SQR into the "bad" directory and I get the same
error.

I have full permissions on all of the directories on this box.

Any ideas as to what might be the problem?

tia