I wrote a library of utility functions in an XLA that have been in a
particular network location for about nine years. IS now wants to move the
XLA to a different location, which will of course break all existing uses,
since Excel embeds the path when a workbook is saved, instead of checking for
the location from the registry's open add-in list (as it would with an XLL).
I have no clue how many users and workbooks will be impacted (probably
hundreds of users and thousands of workbooks).

I can change the links on my workbooks on a case-by-case basis, but this
approach would be problematic for less experienced users. Any suggestions?

Jerry