How to find Program or transaction is already running

Hi ,

How to find one program or transaction already running in background or foreground ( any user).

this is very useful to me , to avoid double time running the same program or transaction.

Thanks in advance

regards,

Moon

Moderator message: FAQ, please search for previous discussions of this topic.

Edited by: Thomas Zloch on Apr 21, 2011 10:15 PM