Unknown internal error of OS (network error)

Hello,

after having a network-timeout or netware-server crash :-(   all
running  D3/D4-applications,
W95 and NT4 + netware client + BDE 5.0, gives an error message when
refreshing the table:
"Unknown internal error of operating system, access denied, file: ..."
(translated from german)
The users in the pdoxusrs.net file are no more current. Closing the
application window seems to be ok,
but the application is remaining in then process-list (shown by
pview95.exe) and must be canceled.

What had to be done to exit the DBsession and to reconnect the tables
(programatically ?) after the network
is back ?

Arno