We have just verified in a multithread environment (web application) that calling to TOracleSession.ServerVersion dosen't work;
I'm using ThreadSafe = True, but calling ServerVersion from different threads cause a crash.
Instead, if I execute a simple query like 'select from v$version' using TOracleQuery/TORacleDataset, it works fine.
Now we can modify our behavior with critical section or other stuff, but I ask to Allround if there are other method/propertys that can be not thread safe (we don't have source code) so we can check.

Thanks