Hello,
I'm using IBO3.6Cf, Interbase 6.01, Delphi5, WinNT4 SP6a.
On exiting my program, when the main datmodule ( the one that
contains the TIB_Connection ) is destroy I get an error :
access viloation at 0x40555bf8, readind address 0x40555bf8.

This problem doesn't occurs with on other machine using Windows2000.
The error occurs when the program try to execute the following line
in the TIB_Components.pas file :

finalization
// This component will be freed but the session will remain in memory
until
// the last component which depends on it is freed.
if Assigned( tmpIB_Component ) then
begin
tmpIB_Component.Free;
tmpIB_Component := nil; <----- ERROR !!!!
end;
TlsFree( hAlternateSession );
TlsFree( hDefaultSession );
hAlternateSession := 0;
hDefaultSession := 0;

end.

Thnaks for your help.
Sylvain.