We noticed that a number of our users' PCs have only the Oracle 11.2 client installed instead of the 10.2 client. The application is built using PB11.2 and it loads PBO10110.DLL when it runs. The DLL is the Oracle 10g driver. The database is Oracle 220.127.116.11.
This all came to light because a particular user had intermittent database problems, and the only thing that stood out was a mismatch between the PB driver and the Oracle client.
Are we playing with fire here with all the mismatches?