If you ever need to replace a 1100 / 1200 with new hardware, or reimage the same hardware to a new state, you can use the following procedure to make the new machine behave exactly like the old machine.
Perform a backup in the SMC. This process is described in vACS Backup and Restore.pdf Save the backup file to a thumbdrive. The backup is stored in c:\inetpub\wwwroot\bak
Perform a restore. This is documented in the link above. Choose the .vbk file saved during the backup process. Reboot the vACS. Verify that the vacs settings are correct.