>On one of our machine we are receiving and error stating the the vfpCompression.fll us invalid. But the when moved to another machine it works fine. Is there some dependency to using this FLL needs?

According to Craig's blog http://www.sweetpotatosoftware.com/SPSBlog/PermaLink,guid,b5fdd81c-4d47-469b-acbb-ddda807adacc.aspx, it requires msvcr71.dll unless he recompiled it in VS 2005. In that case it'll need msvcr80.dll