The only way that would happen is if the site had somehow remapped the temp directory to c:\windows\temp.
Issue a %temp% at the command prompt and see what it comes back with.
It can be overridden in the user section of environment variables.

>A client is having an issue with temp files on their Terminal Server (Windows 2008 R2 64-bit):
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>Several USS****.tmp files are being created daily at C:\\Windows\Temp that I believe are related to [your app] Users. The 3 files are the same size each time they are created, and are totaling about 1GB per day. I have attached them for you to look at.
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>I opened the files in a text editor, and I found references to "Visual FoxPro", so there is some relation. I believe the files are either EXEs or DLLs. I renamed the temp files to an EXE and ran them. One produced a blank message box, the other two complained about not being an EXE. That's definitely NOT how our app behaves, so I'm not sure what this is.
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>I'm surprised anything is being created in C:\Windows\Temp. SYS(2023) returned the user's temp folder. Does VFP still use C:\Windows\Temp as well? Not sure what is going on here. I don't know if the "USS" prefix has any significance, or if it is a random filename that will eventually change to something else. Any ideas?
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>Thanks.