Hi Oleg,
Try with the DTE.Project.Properties collection. Not sure, though.

Signature
Best regards,
Carlos J. Quintero
MZ-Tools: Productivity add-ins for Visual Studio .NET, VB6, VB5 and VBA
You can code, design and document much faster.
Free resources for add-in developers:
http://www.mztools.com
> Hi there,
>
[quoted text clipped - 9 lines]
>
> -Oleg.