Thanks! I meanwhile partially succeeded in playing with the samples. Some hints for others:
- Install 'IIS6 Metabase and IIS6 Configuration Utility' feature of IIS (Control Panel/Programs and features)
- Start PowerShell and allow execution of remote signed scripts ("Set-ExecutionPolicy RemoteSigned") if not yet allowed
- Start CheckDependencies.cmd as Administrator - it is possible to install some of the features - you need at least to install certificates to allow SSL (https connections)
- Start VS 2010 as Administrator and open solutions - it should be now possible to convert all projects.