I have a question about using the ActiveX control called MSHeirarchicalFlexGrid OR MSFlexGrid (file MSHFLXGD.OCX). This control was strongly supported in VB 6.0, but I didn't find it available in C#.NET. I tried to copy the OCX file and place it in System32 folder (Win2000 server), and then select it as a project reference from within the C#.NET environment. The control then appeared in the toolbox. But when I tried to place it on the form, an error message appeared saying that I don't have a license for using this ActiveX control ... I don't know how can I register this control to be available for use in C#.NET.