Ajay Vijay,

Thanks, that works.

OK I'm getting greedy now but I would appreciate any comments about this supplementary question (if anybody has time) ...

I want to run the MasterBuild every night automatically.
The build must do 2 things :-

(1) Attempt to build every project, and
(2) Report any projects that FAIL to build.

I know how to do (1), I just use the "Batch build" utility to tick off all the projects to be built. This will correctly attempt to build EVERY project, even if there are any errors in some projects.

Thanks to Ajay, I now also know how to do PART of (2), i.e. I can easily find out whether every project builds successfully, or if not, which is the first project to fail.

However, I would like to have the best of BOTH worlds.

Maybe the best solution is to perform BOTH kinds of build one after another, i.e. a MasterBuild project build which will stop as soon as an error is detected, then ALSO perform a batch build of every project in turn, which will build them all regardless of any failures that occur.

However, this kind of takes me back to my original question, which is...
Having performed a Batch build to build every project, what is the easiest way to find out which projects FAILED to build?

I think I might have answered my own question here, but I would still welcome any comments.