>Got myself an XP box. Was using the Windows Media Player. The form opens like a familiar rectangular box with menu and an irregular "container" within. After a while, the rectangular form dissappears, and only the "irregular" container remains. Koool!
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>How is this done? Is the feature available to VFP forms?

No, VFP supports only rectangular forms. Take a look at file #9829 that shows how to create "irregular' shape forms using Windows API.