A: 

My issue was with the compiled dll not being compiled for the correct type of environment. I.E. building a x64 version for a x86 installer. Feel free to comment if I need to clarify more.

Terrance  2010-06-09 15:14:11
I ended up using a vbscript custom action instead for simplicity sake
Terrance  2010-06-09 15:16:31

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