>>I need an idea how to create a program that is limited to X number of users...say 5.
>>
>>However, if one of the user's PCs locks up, and he needs to reboot. I need the system to automatically release one of the "seats" so that person or another can log in.
>>
>Take a look at article 'KB003: Limiting Simultaneous Users' by Craig Berntson http://www.craigberntson.com/Articles/kb003.htm
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Thanks.