>It does not work in my program. However, I found a solution :) release window 'form'.

Hmmmm, you should'nt have to resort to that, and that won't work if you ever need to save changes to something. Do you have a Ctrl+W setup as somethign else?

>Using your idea I found bunch of forms, which were pointed to old class libraries, so won't open by modify form nowait...

Right, then it won't work.