When attempting to add or select a Sharepoint 2010 Foundation server farm to the backup selection list in Backup Exec 2010 R2, the error "None of the Web servers for the specified server farm could be accessed" is displayed. No Sharepoint resources are left available to select.
Debug from SPSWrapper.log
 09/27/10 10:01:24 This is farm identified as a Portal
 09/27/10 10:01:24 Request received.
 09/27/10 10:01:24 Request to execute a Get Topology(0x00000001) command.
 09/27/10 10:01:24 Command: 0x00000001
 09/27/10 10:01:24 ::Build Farm Topology
 09/27/10 10:01:24 Start
 09/27/10 10:01:24 Inside SPIsThisServerAWebService()
 09/27/10 10:01:40 Returning True from SPIsThisServerAWebService()
 09/27/10 10:01:41 Inside Build Lists
 09/27/10 10:01:46 Inside GetBackupRestoreObjects()
 09/27/10 10:01:46 Getting BackupRestoreObject xxxxxx_Config
 09/27/10 10:01:46 Failed to build the data for topology backup
 09/27/10 10:01:46 Exception !!
System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.Office.InfoPath.Server, Version=126.96.36.199, Culture=neutral, PublicKeyToken=71e9bce111e9429c' or one of its dependencies. The system cannot find the file specified.
File name: 'Microsoft.Office.InfoPath.Server, Version=188.8.131.52, Culture=neutral, PublicKeyToken=71e9bce111e9429c'
at SPSManagedWrapperHelper.SpsManagedWrapperV3.b(SPBackupRestoreObject A_0)
at SPSManagedWrapperHelper.SpsManagedWrapperV3.GetBackupRestoreObjects(SPBackupRestoreObjectCollection list)
WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].
It has been seen that having both Sharepoint 2010 Foundation and Search Server 2010 Express installed on the same server causes Backup Exec to incorrectly detect the installation as a full Sharepoint 2010 Portal. When enumerating for selections, we fail to get the required topology for the Sharepoint environment and cannot show the selections.
This issue has been resolved by Backup Exec 2010 R2 Hotfix 148347
Sharepoint 2010 Foundation installed alongside Sharepoint Search Server 2010 Express