| **Navigation:**  SQL Drivers > ODBC Accelerator Driver >====== ODBC Caveats ====== | [[a4he0hp.htm|{{btn_prev_n.gif|Previous page}}]][[coming future.htm|{{btn_home_n.gif|Return to chapter overview}}]][[oracle accelerator.htm|{{btn_next_n.gif|Next page}}]] | | || Attempting to access some ODBC commands during a DLL unload phase may cause ODBC to crash. Any destructor of a global object is called during the DLL unload phase. Therefore you cannot perform any commands that will cause the file drivers to access the ODBC API inside destructors of global objects. {{notebox.jpg|NoteBox.jpg}} This ODBC limitation does //not// apply to Windows Vista.