I believe the file you need is this one 40002537_C. You can find it at this link:
Thanks for the information. That webpage doesn’t give much information on what you are downloading, no filename, weather it is for vista, etc. I not one to just download files to see if they might work (or cause even more problems).
I notice that the file is listed on digi’s ftp site. But, there is also a D, E,F,G, and H version. Are the incremented letters updates to the same file?
Here is the link to the Edgeport 5.10 which does have support for Vista: