Hello,
I completely agree with the Suggestions above.
However, speaking about your issue:
If you update Symantec AntiVirus Corporate Edition (SAVCE) with LiveUpdate it fails and you see an error message like "LiveUpdate was unable to load the catalog file of available Symantec product updates are not." You may also see an error message like "Unable to connect to the LiveUpdate server."
Solution:
For this problem there are several possible causes: In most cases, there is one of the following two reasons:
Symantec System Center
Check the server properties in the Symantec System Center. If the tab "live update" refers to an internal server, change it to a Symantec LiveUpdate server.
Existence of the file S32luhl1.dll
First Find the file S32luhl1.dll the folder C: \ Program Files \ Symantec \ LiveUpdate. If the file exists, delete it.
Second Open, delete the file and then the line Settings.LiveUpdate PREFERENCES \ LAN_HAL_PRESENT = YES.
NOTE: Only change the one Settings.LiveUpdate file whose name no number is prefixed. To delete or modify these files, you must have read-write access. For Settings.LiveUpdate may write protection is set.
The particular location of the file Settings.LiveUpdate is operating system dependent:
For Windows 95/98: C: \ Windows \ All Users \ Application Data \ Symantec \ LiveUpdate
For Windows NT 4: C: \ WinNT \ Profiles \ All Users \ Application Data \ Symantec \ LiveUpdate
For Windows 2000: C: \ Documents and Settings \ All Users \ Application Data \ Symantec \ LiveUpdate
NOTE: Before removing the line PREFERENCES \ LAN_HAL_PRESENT = YES from the file you must delete the file Settings.LiveUpdate S32luhl1.dll.
Otherwise, contact Symantec Technical Support.