I have found a solution to the tsadmin problem. Copy these files from a 2008 server to the Windows 2012/8 computer under c:\windows\system32
- tsadmin.dll
- tsadmin.msc
- umcRes.dll
- wts.dll
Then import these registry settings and you have Tsadmin.msc working again! :)
Reg file is attached.
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MMC\SnapIns\FX:{3FCE72B6-A31B-43ac-ADDA-120E1E56EB0F}]
"ApplicationBase"=hex(2):43,00,3a,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,\
73,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,00,00
"About"="{00000000-0000-0000-0000-000000000000}"
"VersionStringIndirect"="@C:\\Windows\\System32\\umcRes.dll,-106"
"ProviderStringIndirect"=hex(2):40,00,43,00,3a,00,5c,00,57,00,69,00,6e,00,64,\
00,6f,00,77,00,73,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,\
5c,00,75,00,6d,00,63,00,52,00,65,00,73,00,2e,00,64,00,6c,00,6c,00,2c,00,2d,\
00,31,00,30,00,32,00,00,00
"NameString"="Remote Desktop Services Manager"
"HelpTopic"=hex(2):25,00,73,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,00,6f,00,\
74,00,25,00,5c,00,68,00,65,00,6c,00,70,00,5c,00,74,00,73,00,5f,00,6d,00,61,\
00,6e,00,61,00,67,00,65,00,72,00,2e,00,63,00,68,00,6d,00,00,00
"AssemblyName"="tsadmin"
"RuntimeVersion"="v2.0.50215"
"Description"="Manage Remote Desktop Services sessions"
"DescriptionStringIndirect"=hex(2):40,00,43,00,3a,00,5c,00,57,00,69,00,6e,00,\
64,00,6f,00,77,00,73,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,\
00,5c,00,75,00,6d,00,63,00,52,00,65,00,73,00,2e,00,64,00,6c,00,6c,00,2c,00,\
2d,00,31,00,30,00,34,00,00,00
"LinkedHelpTopics"=hex(2):25,00,73,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,\
00,6f,00,74,00,25,00,5c,00,68,00,65,00,6c,00,70,00,5c,00,74,00,73,00,5f,00,\
6d,00,61,00,6e,00,61,00,67,00,65,00,72,00,2e,00,63,00,68,00,6d,00,00,00
"NameStringIndirect"=hex(2):40,00,43,00,3a,00,5c,00,57,00,69,00,6e,00,64,00,6f,\
00,77,00,73,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,\
75,00,6d,00,63,00,52,00,65,00,73,00,2e,00,64,00,6c,00,6c,00,2c,00,2d,00,31,\
00,30,00,33,00,00,00
"IconIndirect"=hex(2):40,00,43,00,3a,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,\
00,73,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,75,00,\
6d,00,63,00,52,00,65,00,73,00,2e,00,64,00,6c,00,6c,00,2c,00,2d,00,31,00,31,\
00,31,00,00,00
"FxVersion"="2.0.1.7"
"Type"="Microsoft.TerminalServices.Monitor.SnapIn.TSManagerSnapIn, tsadmin, Version=6.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
"FolderBitmapsColorMask"=dword:00000000
"ModuleName"="tsadmin.dll"
"Provider"="Microsoft Corporation"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MMC\SnapIns\FX:{3FCE72B6-A31B-43ac-ADDA-120E1E56EB0F}\NodeTypes]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MMC\SnapIns\FX:{3FCE72B6-A31B-43ac-ADDA-120E1E56EB0F}\Standalone]