What versions of Backup Exec are affected by this issue:

Backup Exec 10.0 for Windows Servers revision 5484
Backup Exec 10.0 for Windows Servers revision 5520
Backup Exec 10d for Windows Servers revision 5629
Backup Exec 11d for Windows Servers revision 6235 (both 32bit and x64bit Media servers)
Backup Exec 11d for Windows Servers revision 7170 (both 32bit and x64bit Media servers)

How to obtain the patch:

Backup Exec 10.0 for Windows Servers revision 5484
 http://support.veritas.com/docs/289289
Backup Exec 10.0 for Windows Servers revision 5520
 http://support.veritas.com/docs/289290
Backup Exec 10d for Windows Servers revision 5629
 http://support.veritas.com/docs/289291
Backup Exec 11d for Windows Servers revision 6235 Service Pack 3
 http://support.veritas.com/docs/303030
Backup Exec 11d for Windows Servers revision 7170 Service Pack 3
 http://support.veritas.com/docs/303031


What issues does this hotfix resolve?

Symantec Security Advisory SYM07-015
 http://support.veritas.com/docs/289731


Which files does this hotfix replace?
After installing this hotfix, the version of the installed files will change as indicated in the table below.
File versions are as indicated for the Media Server
Backup Exec Media server files are located at C:\Program Files\Symantec\Backup Exec\

For Backup Exec 10.0 revision 5484:
 

File Name	Version
BEMSDK.DLL	10.0.5484.40
BESERVER.EXE	10.0.5484.40

For Backup Exec 10.0 revision 5520:
 

File Name	Version
BEMSDK.DLL	10.0.5520.37
BESERVER.EXE	10.0.5520.37

For Backup Exec 10d (10.1) revision 5629:
 

File Name	Version
BEMSDK.DLL	10.1.5629.49
BESERVER.EXE	10.1.5629.49

For Backup Exec 11d (11.0) revision 6235:
 

File Name	Version
BEMSDK.DLL	11.0.6235.24
BESERVER.EXE	11.0.6235.24

For Backup Exec 11d (11.0) revision 7170:
 

File Name	Version
BEMSDK.DLL	11.0.7170.9
BESERVER.EXE	11.0.7170.9

Special Installation Instructions
This section contains additional installation instructions for installing this hotfix.

Microsoft Cluster:
This hotfix must be installed on all nodes of the cluster. After installing this hotfix on the primary node, use the cluster administrator to move the BEWS group to the failover node, and run the installation again for each node of the cluster.

SAN Storage Option (SSO):
Before installing this hotfix on a Backup Exec 11d media server that is using the SSO option first make sure that there are no backup or restore operations running on any of the media servers in the SAN.  Apply the hotfix to the primary SAN SSO server first then to all of the secondary servers.

Central Administration Servers:
Before installing this hotfix on a Backup Exec 11d Central Administration Server (CAS), communication must be disabled between the CAS and all Managed Media Servers (MMS):

1. Open the Backup Exec User Interface

2. Click Media Servers

3. Right-click on each MMS and clear the Communication Enabled check box

After the hotfix is installed, enable communication between the CAS and all MMSs:

1. Open the Backup Exec User Interface

2. Click Media Servers

3. Right-click on each MMS and select the Communication Enabled check box

LiveUpdate Installation Procedure (for Backup Exec 11d only):

To install this hotfix on a media server using LiveUpdate:
1. Within the Backup Exec console go to 'Tools > LiveUpdate'. By default LiveUpdate will be launched in Express mode.
2. After clicking Next, any available patches will be installed.

Note: It is possible to see the hotfixes that are available first, and then choose which to install. To do this, change the mode from Express to Interactive by going to 'Options > Configure' on the initial LiveUpdate screen and changing the install mode. The Interactive mode also allows details to be seen about each available update before it is installed.

Uninstalling this hotfix

For Symantec Backup Exec 11d revision 6235 and Symantec Backup Exec 11d revision 7170, the hotfix can be uninstalled from Add/Remove programs.
For the other versions, the hotfix cannot be uninstalled.