Hi Craig. Thanks for replying
Don't know if this will help as users are not tied to workstation Id's
Also, if somebody Ctrl,aLt,Delete, Ii Have stored a Worksation Id for the user, I will still think they are logged in if they have not exited gracefully from the system??

Regards,
Gerard





>When they login you can grab their workstation ID and store that
>
>
>
>>Hi.
>>Just looking for ideas/best practise in processing multiple users
>>Our app can have multiple users logging in (Maintained in a Sql Database)
>>App using Sql Server, C# and can be run from Lan PC or Rdp session or Stand alone
>>
>>
>>Ideally, don't want the same user logging in twice, but how do we determine if:
>>A user is really in the system
>> v/s
>> A user might have logged in but there was a power cut and Application still thinks they are logged in but they have in fact been kicked out
>>
>>If there is a reliable way of telling that a User is in fact in the system, then at login point we can prevent access by the same user id
>>
>>Tia
>>Gerard