Mup.sys – Pre Service Pack 3 Revision History for Windows Server 2003 SP2 and Windows Small Business Server 2003 SP2 (SBS 2003)
12-Apr-2011 – 5.2.3790.4851 – Mup.sys – x86/x64 – http://support.microsoft.com/kb/2535512 – MS11-042: Vulnerabilities in Distributed File System could allow remote code execution: June 14, 2011
18-Jan-2010 – 5.2.3790.4651 – Mup.sys – x86/x64 – http://support.microsoft.com/kb/978972 – Stop error message when you rename a file or folder by using a DFS shared path on a computer that is running Windows Server 2003: “Stop error code 0x00000027 (RDR_FILE_SYSTEM)”
12-Jun-2008 – 5.2.3790.4312 – Mup.sys – x86/x64 – http://support.microsoft.com/kb/954091 – You cannot access the correct DFS shared folders from a Windows Server 2003-based DFS client after the link targets are updated
28-Feb-2007 – 5.2.3790.4032 – Mup.sys – x86/x64 – http://support.microsoft.com/kb/931953 – WMI returns a NULL value for the ProviderName attribute of the Win32_MappedLogicalDisk WMI class in Windows Server 2003