hi michael, thank u for u r response I tried to debug in VC++ IDE, but the control is not coming into the code.Yes, it's failed on some combinations like WinNT 4 + Excel 97/2K. It's displaying the control content(which some image), but it's not responding to the events on it like mouse clicks even the messageboxes that i placed in OnDraw() & control's constructor are not prompted. As i think Excel is not recognizing it as a control, but why it's so i don't know if u can plz help. lastly is there any diff between containment behavior of word and Excel, because the same control is working in all Word Versions. Thanx :rose: in advance hoping that u will respond.