> Spoke too soon.
>
> So far the test program only passed once -- the rest yielded an access
> violation in gds32.dll, and mostly invalid transaction handle.
>
> Project Project12.exe raised exception class EAccessViolation with
> message 'Access violation at address 0358C94B in module 'gds32.dll'.
> Read of address 00000004'.
>
> After which, the application throws another AV in
> NotifyNonDelphiException (System.pas), and then the whole application
> just hangs.
>
> Something is still very wrong. :(
>

sounds to me like you have more than one thread trying to use the same
transaction.
Do you have each thread using their own transaction?
Alan