I'm not sure if this has been mentioned before but here it is. I build the serialization library with the Windows VC 7.1 IDE. I have a large "solution" which contains one project for each of the fifty tests I run. Also there are two projects to build the libraries themselves and 5 projects to run the demos included in the package. I've setup the the "project configurations" to select the combination of tests I want to build/run. These combinations are things like release/text archive, etc. So whenever I make a change, I just rebuild the solution and all dependents and are rebuilt and thier tests are run. I get a long list of results in the output window. I implemented this in conformance with a suggestion from the boost test documentation. It was a huge pain the a** to setup. But it seems worth it now. I'm not sure what the motivation for the GUI front end is and what form it will take but from my standpoint it would be nice to automatically setup the project hierarchy and variations. This could be done by automatically creating project files since they are just XML. But it could also be done in a more "microsoft compatible" GUI way (which would also be quite slick looking and feeling) by creating a Boost add-in to the VC 7/8? system which uses the DevStudio object model. So it would be very cool to have a Boost Add-in to DevStudio which would have a boost application wizared etc. I realize that its not cross platform, but I'm sort of doubtful that any GUI isn't going to be really cross platform. Just my 2 cents. Robert Ramey