It is possible to make the MSVC and VS.net debuggers show the value of PWLib types either in hover text or in watch lists. This is done by adding additional information to the AUTOEXP.DAT file provided as part of the Microsoft development enviromnent
To insert these definitions, first open the existing AUTOEXP.DAT file for your environment, you may need to search a bit for it. For the various express editions it is usually in:
C:\Program Files\Microsoft Visual Studio *\Common7\Packages\Debugger\autoexp.dat
Then download the AUTOEXP.DAT file from the SVN repsitory and replace the line [Visualizer] with the contents of the file.
Restart Visual Studio, and the values of PTLib variables will now be displayed in the debugger.