Interops problem with Msoffice 2007

Question

Hii All I have a problem with the interoperabls.My application is develpoed in dotnet2003.And in that I have used the Microsoft.Office.Interop.PowerPoint.dll and office.dll for Office 2003. Now I have installed office 2007 while building my application is giving an error. A first chance exception of type 'System.Runtime.InteropServices.COMException' occurred in WaferMap.exe Additional information: Unspecified error I have given reference to Object Library2.0 in the Com Part of the reference pane.Anybody could help me to clear out this problem

Satish Kathi · Answer

I had same problem with Word when you change the version of office it will blew up. Here is the solution : Open the .csproj in note pad and look for following lines (in my case it is word as yours is power pint look for power point ) {00020905-0000-0000-C000-000000000046} 8 4 0 primary False And change the to 4 . For 2007 it is 4 and for 2003 it is 3. 4 Save .csproj and this should work Hope this helps.