We have a 4.11 server remotely backing up
a SFTIII (4.11). In past this worked fine with
7.5 even with accelerator! After upgrade to 8.5 I get
a loading error:

FRA-3:load bkupexec
Loading module BKUPEXEC.NLM
Backup Exec SureStart
Version 8.50 October 8, 1999
(c) 1999 VERITAS Software Corporation. All rights reserved.
SERVER-4.11-1586: Loader cannot find public symbol: GetRealModeWorkSpace
SERVER-4.11-1586: Loader cannot find public symbol: DoRealModeInterrupt
SERVER-4.11-1548: Load file referenced undefined public variable.
Module BKUPEXEC.NLM NOT loaded

"LOAD BKUPEXEC" without "-TR", as described in technote 189383
even doesn´t work. Okay, TSA*.NLM works but slowly.

Why DID BKUPEXEC work in former times but NOT after upgrade?

Thank you!