From LedHed's Wiki
When using a DFS Share, Explorer sometimes requires a manual refresh when new files are created within the share.
Workaround: Create DWord value "NoSimpleNetIDList" = 1 in:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
.REG File
Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] "NoDriveTypeAutoRun"=dword:00000091 "DisablePersonalDirChange"=dword:00000001 "NoSimpleNetIDList"=dword:00000001
ADM Template?
CLASS USER CATEGORY "DFS Explorer Refresh" KEYNAME "Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" POLICY "Enable refresh on DFS share" VALUENAME NoSimpleNetIDList VALUEON NUMERIC 1 VALUEOFF NUMERIC 0 END POLICY END CATEGORY ; File list in the Windows Explorer folder is not refreshed after you ; create, move, or delete files ; http://support.microsoft.com/default.aspx?scid=kb;EN-US;823291
Reference
http://support.microsoft.com/default.aspx?scid=kb;EN-US;823291
http://social.technet.microsoft.com/Forums/en/winservergen/thread/7393f3ff-7adb-465b-b2d5-03e2cc808b07
http://www.eggheadcafe.com/software/aspnet/30059864/explorer-folder-is-not-refreshed-on-dfs-shares.aspx