You can use the following to speed up tape backups. To control how long Windows NT's NTBackup program waits on an open file or skips open files, set the following Windows NT registry hacks: Hive: HKEY_CURRENT_USER
Key: Software\Microsoft\Ntbackup\User Interface
Name: Wait time
Type: REG_SZ
Value: 30sec=default range=1-65535sec

Files That Are Skipped by Default by Windows NT Backup:

• Files you do not have permission to read. Only those with backup rights can copy files they do not own in Windows NT Backup.
• Files that are temporary in nature--such as PAGEFILE.SYS, WIN386.SWP, 386SPART.PAR, BACKUP.LOG, and RESTORE.LOG--are neither backed up nor restored by Windows NT Backup. The list of skipped files is hard-coded into Windows NT Backup and cannot be changed.
• Registry files on remote computers. Windows NT backs up only local registry files.

The above parameter controls how long to wait. The following key determines whether to skip the above files or wait.

Hive: HKEY_CURRENT_USER
Key: Software\Microsoft\Ntbackup\User Interface
Name: Skip open files
Type: REG_SZ
Value: 0 do not skip files, wait
Value: 1 skip files that are opened
Value: 2 wait on open files for "wait time"