I will plan to add the Feature request.  The wix.codeplex.com 'bug' link is
not responding so I will check back again later to do that.  In the mean
time I plan to have the 'parent' process set a registry key and then read
that in the BAFunction.DLL.  I really appreciate the BAFunction.DLL as I
have been able to use it to detect configuration requirements and then post
localized messages that are more specific than 'The specified program
requires a newer version of Windows.'

Another idea that I had, which I have not worked on yet, is to detect the
command line input and then try to change whether the BA is running in
silent mode or not, in either OnStartup or OnDetect.  There are some
situations where it would be good to run in silent mode even if the calling
process did not signal silent mode.

the BAFunction.dll also provides a good way to attach a debugger and step
into the engine code and generally learn a lot about the toolset.





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