GFI WebMonitor can be configured to use ISA server as a proxy server and authenticate the connection done to check for latest virus definition file updates and to download them. This can be done as follows:
Open Registry Editor (Start -> Run -> Regedit).
Browse to: [HKEY_LOCAL_MACHINE\SOFTWARE\GFI\WebMonitor]
Create a new Key (the name should include the brackets):
Right click on the new Updates(AdminsOnly) key , and select Permissions. Ensure that only Administrators and the LocalSystem users are allowed access to this registry key.
Create the following string values:
Set the Value data for the values above as follows:
UpdateProxyIP = IP address of the proxy server
UpdateProxyPort = Port number used by the proxy server
UpdateUser = Username of a user having full internet access.
UpdatePassword = Valid password for the Username above.