JSI Tip 4426. Windows XP scheduled backups do NOT run with backup operator credentials?

When someone other than a backup operator is logged on to the console, scheduled backups run with backup operator credentials may fail with the following System event:

Event Type: Error
Event Source: DCOM
Event ID: 10002
Description: Access denied attempting to launch a DCOM Server.

The problem is caused by the backup operators group not having the permissions required to run a scheduled task when someone other than a backup operator is logged interactively.

The only workarounds that I know are:

1. Use Administrator credentials.

2. Grant the required permissions using Dcomcnfg.exe:

  a. Start Dcomcnfg.exe.
  b. Press Component Services. 
  c. Press Computers.
  d. Press My Computer.
  e. Press DCOM config.
  f. Right-click Removable Storage Manager, and press Properties.
  g. Select the Security tab.
  h. Press Edit under Launch Permissions.
  i. Add the backup operators group.