Sounds like the app wasn't installed correctly, is it in the 64bit programfiles directory and not the 32bit directory.

>I have a vfp application running on a windows 2008 64 bit Terminal server about once a weekthe server will lock the EXE and wont allow anyother users to access the application. Everyone else will get an error when starting the program that says this is not a windows 32 application. If we go into computer manger and close the file for that user the error goes away and everyone can use the program.
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>Any ideas what is causing this?