License Problem

We have developed an application to support running as a standalone application and as a MS Office Addin. In both of these modes, we need to render graphic with GoDigram. We build our application with .NET 2002.
When we are testing our program, it can work well with .NET Framework 1.1. But if running our program with .NET Framework 1.0, we cannot render graphic in our Office Addin, it reports a “null license” exception; but it can render well in standalone mode.
We have included the required licenses.licx file in .NET projects.
Please give your help, thanks a lot!