Vista - Microsoft Cross-Platform Audio Creation Tool (XACT) API

I could not find an appropriate discussion group nor any posted messages
remotely related to this tool so I will post it here and hope that it will be
seen.
I want to use the XACT Engine (uhhh...I found it in the DirectX Sample
Browser just in case no one has any idea what I'm talking about which I feel
is a distinct possibility) in my application but I cannot create the engine
when my application is run on another machine. I believe I might be missing
some files because it runs fine on my development machine. There is extremely
little documentation to 1) help me to even determine what the creation
failure error is and 2) help me to determine how to distribute XACT
applications. If there are any ships in the night out there can you throw me
a life preserver?
Greybeard