Are you really interested in opening the other database, or just using some
of the data from the 2nd database in the first application?
If you want to do the latter, you can link tables from one to another. If
there is code in the second database that you want to use in the first, you
can make the 2nd database an add-in and use the Tools-References to "link"
the two databases, allowing you to run code in db#2 from within db#1.
If you just want to open the 2nd database, you could use the Shell( )
function to open another instance of Access and open the file, something like:
RetVal = Shell("MSAccess C:\TEMP\2ndDatabase.mdb", 1)
Or you could probably use the FollowHyperlink method
application.FollowHyperlink "C:\Temp\2ndDatabase.mdb"
HTH
Dale