.net下com的垃圾回收问题

Question

tryIntPtr pUnk = Marshal.GetIUnknownForObject(myComObject);
int refCount = Marshal.Release(pUnk);

Answer 1

Thanks, actually I've tried this, doesn't work at all. I also tried:
            Marshal.ReleaseComObject(member);
          //Marshal.FinalReleaseComObject(member);
            member = null;
I can get the return count number=0 for the Release action, however the com object seems still exist, unless I run GC.cellect(). Any other helps?