Suman Kumar Sikdar

hi,
I am doing a smart device project where I need to put a text on a running video....By Win32 application it can be done...but when I select smart device project in visual studio 2005 , I am facing problem.The problem is it is unable to find out CLSID_VideoMixingRenderer9.
I included all the header files & library also.But unable to do that.
Can anybody suggest me, or tell me any other method that can be used in my prj. for CLSID_VideoMixingRenderer9.Please help me.

Thanx.

Suman Kumar Sikdar