You must map the server shared folder to your driver W: .
Error 3 Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=188.8.131.52, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. W:\dev\cs\Default2.aspx 15
I got such error when I test a project that is store in another PC (or Server) .
Maybe you can copy all code to your disk , and use vs2005 to open it and try again .
But when I test the network driver , I didn't get error as Element 'Editor' is not a known element. .
Regards , Terry .