I have many sites using my VB6 app that uses MDBs.
Since Windows update KB 4480966 was rolled out yesterday they are all getting an "unrecognizable database format" error at various parts of my program. It can load the database for some parts of the program but not others presumably based on the different tables being accessed.
Uninstalling the update solves the problem but there must be something in the JET Engine update that breaks something in my database structure.
It's also happening with Win 7 PCs.
Any ideas anyone?