Hello,

I start Windows Media Player (=WMP). I see it is "Untrusted".

I start an other program (without closing WMP).

I return to WMP and I do not see the "Untrusted" indication on the top of the window of WMP (in fact, no indication of DW).

This is only true if the window of the second program covers the top of the window of WMP.

I have the impression that for WMP, DW adds a small window above the window of Windows Media player. This additional small window of DW disappears in whole or in part if it is covered by an another window.

It's because WMP is using title bar skinning. When applied, it just cover the "Untrusted" status within the title.

So even when the blue window of DW disappears, WMP is still Untrusted.

Correct?

Correct. Same issue with MS Office 2007.