I have a relatively straightforward dll, written in VB.net, that will not run
properly on a Vista box.  Not sure this is a vb.net issue, but I have covered
every secutiry possibility (at least I think I have) and I thought I'd start
here.

The process is this:

We pass
1) an ID for a person in our database, and
2) an ID for an RTF format document (a standard form of some kind) to an ASP
page as follows:

forms_print.asp?custID=7004&formID=175

This RTF document has specially denoted fields on it, e.g. <<LastName>> that
are to be replaced with data from the DB.

The ASP page
1) gets the data pertaining to the person from our DB as an XML document and,
2) calls the dll to do a "text replace", i.e. replace <<LastName>> with the
actual last name of the person, then
3) opens the RTF document in Word or Word Viewer for printing or whatever
the user wishes.

This process works flawlessly under XP, but wont work under Vista.  We have
reviewed permissions, etc. and just dont know where to start to solve this
problem.

Does the dll need to be rebuilt on a Vista machine or with some other
reference we aren't aware of?

Any guidance appreciated.