Today I downloaded
(from http://www.microsoft.com/download/en/details.aspx?id=9983)
and "successfully" installed the Async CTP 3.0 on an XP PC (x86) with VS 10 Professional SP1.
I did not have async ctp installed before.
Now Async CTP 3.0 is not listed in the "Add or Remove Programs" panel.
AsyncCtpLibrary_Phone.dll is not installed <<<<<<<<<<<<<<<<
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hdolder