Hey, I think that I've found a problem in your code. Please see the modified code below, SP_CLASSIMAGELIST_DATA imageList = {0}; int imIndex; CImageList imList; imageList.cbSize=sizeof(SP_CLASSIMAGELIST_DATA); SetupDiGetClassImageList(&imageList); imList.Attach(imageList.ImageList); m_Tree.SetImageList(&imList,TVSIL_NORMAL); Hope it helps.. :)