Does each user run their own copy of the exe and have their own copy of the database? Or are they shared?

Our terminal server installations are setup where the users run a launcher that creates a completely separate workspace just for them - nothing is shared.

-w-

>Several users run my app under Citrix. Every now and then they say that a user's data gets overwritten with the information of another user. What could cause this?
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>Note: They have set up separate temp folders for each user. This appears to be done correctly.
>Sys(2023) for two users show:
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C:\DOCUME~1\TESTFD~1\LOCALS~1\TEMP
>C:\DOCUME~1\RLONG\LOCALS~1\TEMP

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>I made a test program to copy a file to the temp folder, and each user was able to copy it independently to his TEMP folder.
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>What could I try to avoid the data mix up? Help, any ideas?
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>Cyril