Applies to:
Windows Server 2008 Service Pack 1 [Windows Server 2008 (R1) Service Pack 1]
Windows Server 2008 SP1 [Windows Server 2008 (R1) SP1]
W2K8 Service Pack 1 [W2K8 (R1) Service Pack 1]
W2K8 SP1 [W2K8 (R1) SP1]

Note 1:  You should check http://support.microsoft.com for the latest version of the different files.
Note 2: Windows Server 2008 (R1) Service Pack 1 regular support has ended.

List of DFS related hotfixes post Service Pack 1 for Windows Server 2008 SP1 as of Mar., 2012:

Preferred:
======

Please look into installing "Service Pack 2"
Windows Server 2008 Service Pack 2 and Windows Vista Service Pack 2 - Five Language Standalone (KB948465)
http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=16468
and
Check for post SP2 hotfixes such as in:
List of DFS related hotfixes post Service Pack 2 for Windows Server 2008.
http://blogs.technet.com/b/yongrhee/archive/2009/09/29/list-of-dfs-related-hotfixes-post-service-pack-2-for-windows-server-2008.aspx

Alternate:
======

2394849 The DACL of a DFS link is corrupted in Windows Server 2008, in Windows Vista, in Windows 7 or in Windows Server 2008 R2 if you use the Dfsutil.exe utility to export DFS configuration data from the DFS link
http://support.microsoft.com/?id= 2394849

Update(s):
Dfsn-serverservice-ppdlic.xrm-ms
Dfssvc.exe

Supersede(s):
971405 Windows Explorer stops responding for approximately 30 seconds when you try to access the DFS resources in a Windows Server 2008 domain

2549311 You cannot access a DFS share by using a valid user account in Windows Server 2008 R2, in Windows 7, in Windows Vista or in Windows Server 2008
http://support.microsoft.com/?id=2549311

Update(s):
Dfsc.sys

Supersede(s):
976452 Error message on a blue screen when you perform an operation to a DFS server from a computer that is running Windows Vista or Windows Server 2008: "PAGE_FAULT_IN_NONPAGED_AREA"
960151 Error message when you try to access a network drive that is mapped to a DFS shared folder on a client computer that is running Windows Vista or Windows Server 2008: "Error: Location is not available"

2450944 Some folders or files are unexpectedly deleted on the upstream server after you restart the DFS Replication service in Windows Server 2003 R2, in Windows Server 2008 or in Windows Server 2008 R2
http://support.microsoft.com/?id=2450944

Update(s):
Dfsrprovs.mof 
Dfsrress.dll
Dfsrs.exe

Supersede(s):
2286715 A SYSVOL share migration from FRS to the DFS Replication service stops responding at the Start state in Windows Server 2008
979646 Some folders or some files are unexpectedly deleted on the upstream server after you restart the DFS Replication service
977381 The DFS Replication service may stop responding when it initializes the replication process for the replicated folders on a computer that is running Windows Server 2003 R2, Windows Server 2008, or Windows Server 2008 R2
973275 Only the first character appears for some strings in the event messages when you query the DFS Replication event log on a computer that is running Windows Server 2008
971203 The memory usage of the DFS Replication service keeps increasing on a PDC emulator or on a writable domain controller that is running Windows Server 2008 during the SYSVOL share replication process
969688 A SYSVOL share migration from FRS to the DFSR service fails on a computer that is running Windows Server 2008 if a disjoint namespace is configured in the domain
967326 Data loss occurs after you use the Dfsrmig.exe tool to migrate the SYSVOL share from the FRS to the DFSR service in a Windows Server 2008-based domain

972841 Windows Search does not return files or folders that are under DFS-linked folders on a Windows Vista SP2 or on a Windows Server 2008 SP2-based computer
http://support.microsoft.com/?id=972841

Update(s):
Shell32.dll

Supersede(s):
954037 Error message when you try to copy a file to a DFS shared folder or to a shared folder that is a mount point in Windows Vista or in Windows Server 2008: "The selected files could not be copied. There is not enough free space on the device"
953537 The contents of a DFS share do not appear if you access the share by using a shortcut to the DFS link from a Windows Vista-based computer or from a Windows Server 2008-based client computer

962969 Error message when you run Dfsradmin.exe to set membership properties in Windows Server 2008: "The property MemberSubscriptionReadOnly cannot be used"
http://support.microsoft.com/?id=962969

Update(s):
Dfsobjectmodel.dll

958285 Error message when you access the shared resources in a cooperation network over a VPN connection from a Windows Vista or Windows Server 2008-based client computer: "0x80004005" or "0x80070035"
http://support.microsoft.com/?id=958285

Update(s):
Smb.sys

For more information:
968429 List of currently available hotfixes for Distributed File System (DFS) technologies in Windows Server 2008 and in Windows Server 2008 R2
http://support.microsoft.com/?id=968429