>...Thnx to all that help me to work around the one instance problem, I been ussing a class from the download area (oneinstance) is working fine (simple things are beautiful)...
>Just to add better functionality will be ok if the already runnig application will pop up as soon someone is trying to run another instance...
>any idea??
I think you can use SendMessage function from API to do that. There is also a SetForeground function, but it is better to avoid it.