Reverse engineering of VB.NET-code to UML by VISIO

[Asterix15]

Hi Programmers,
i'm trying to extract UML-diagrams from VisualBasic.NET-projects by reverse engineering with microsoft VISIO. I've Visual Studio 2003 and VISIO Professional 2002 running on my Computer. In the VISIO-help i found the guidance to:
"mark the Project map in the Project map-explorer in Visual Studio, then klick the menu "Project" -> "VISIO UML".... and so on.
My Problem is: There is no entry "VISIO UML" beyond the menu "Project" in my Visual Studio.
May that be because of the installation sequence (first Visual Studio, then VISIO)? Or may it be something else????
Any hint would be appreciated

Thanks in advance

Albrecht