Hi Monish, I also noticed your feedback on my website. It is always good to hear people are using the BSF.
Does Visual Studio also hang if you remove that line from 'GeneralValues.xml'?
Do you use the argument in another file like for example 'CreateSolutionRecipe.xml'?
It doesn't really makes sense for Visual Studio to hang on this, althought I've seen already some strange behavior every now and then.
I've tried adding that line in GeneralValues.xml into my sample project for BizTalk 2009 and that appeared to work just fine.
Please add as much detail as possible so I might be able to reproduce it.
By the way, sometimes Visual Studio is behaving weird if you have added and removed the BSF over and over again. Maybe some piece of the installation is still left?