Windows NT comes with NTBackup which I used extensively but it is not an exterprise solution. If you have a tape unit in each server and you can shut down services to keep critical data files closed, then NTBackup will work for you. If you are running into its limitation, check out these products:

• BEI's UltraBac for Windows NT
  
• Computer Associates' ARCserve
  
• Computer Data Strategies Back Again
  
• HP's OmniBack
  
• Legato's NetWorker
  
• Netvault's Windows NT Backup and Restore
  
• NovaStore's NovaNet 7 for Windows NT
  
• St. Bernard Software's Open File Manager
  
• StorageTek's REELbackup
  
• Syncsort's Backup Express - Multi-Platform Backup
  
• Veritas' Backup Exec