>Is there a simple way for a VFP6 application to determine how many other users on the network have the database or any specific DBF open, as well each of their NT userids?
>
>One way is to create a network table (login.dbf) and everytime someone opens the app, they create a record in that table and lock that record. Then to see who is in the application you scan the table and look for locked records [Not Rlock()]. The only exception is yourself and you check that via ' LOCKED'$UPPER(SYS(2011)). Make sense??
>
>Kevin

To do it right, this is less easy then expected, because the Rlock() -which you have to use in order to check the others' records (thus free them again)- consume too much time. I'm not sure you (Kevin) meant that Rlock() shouldn't be used at all (but then how to do it ?).
So note that an Rlock() for -say- 50 user-records take 0,1 sec per Rlock() (test it, this can be the response easily), you are in trouble.
Solve this by carefully reading the Help on Reprocess, and expect the ON ERROR to be involved ... (with an On Error active, all is different -> faster).

HTH for now,
Peter