Hello - I'm using the Spreadsheet WebComponent in a WinForms application. Because I wanted to handle events from the WebComponent, I followed the instructions in the MS KB article ( http://www.**--****.com/ ) and recompiled the OWC11 dll. After recompiling, I was left with the following dlls: adodb.dll AxOWC11.dll Microsoft.Office.Interop.Owc11.dll MSCOMCTL.DLL msdatasrc.dll I then opened up Vis Studio 2003, and added the AxOWC11.dll components to my Toolbox: AxChartSpace, AxPivotTable, AxSpreadsheet. I created my WinForm and compiled my project. I then went to a different development machine, but brought all my DLLs. I added the same components to my Toolbox, but when I try to drag any of the components over to a Form, I get a MsgBox with the following error "Class Not Registered". The only thing I know is that my first development box had Office 2003 installed (I'm using OWC11) and the second development box had Windows XP installed. Hence, I cannot develop on this second machine. Does anybody know how to either "Register" my recompiled OWC11 DLLs or know to resolve this issue. Thanks, Nate