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ms-cxh and ms-cxh-full handlers

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Another 2 bits I posted to Twitter — noticed that there is a built-in “ms-cxh” handler that was unknown to me (CXH stands for Cloud Experience Host) and there is also its near cousin “ms-cxh-full” (which I spotted while I was looking at the Registry settings for ms-cxh).

The first one accepts a number of strings which in return launch dedicated Dialog/Wizard offering specific Windows functionality including adding new user, changing PIN, password, etc. f.ex.:

ms-cxh://SETADDNEWUSER

ms-cxh://NTHENTNGCONLY

List of available strings I found in Windows binaries:

  • ms-cxh://AADPINRESETAUTH
  • ms-cxh://AADSSPR
  • ms-cxh://AADWEBAUTH
  • ms-cxh://FRX/AAD
  • ms-cxh://FRX/INCLUSIVE
  • ms-cxh://FRX/INCLUSIVE?start=OobeProvisioningStatus
  • ms-cxh://FRX/TEAMEDITION
  • ms-cxh://FRXRDXINCLUSIVE
  • ms-cxh://MOSET/AADLOCAL
  • ms-cxh://MOSET/CONNECTTOWORK
  • ms-cxh://mosetmamconnecttowork?mode=mdm&username=%s&servername=%s
  • ms-cxh://mosetmdmconnecttowork
  • ms-cxh://MOSETMSA
  • ms-cxh://MOSETMSALOCAL
  • ms-cxh://MSACFLPINRESET
  • ms-cxh://MSACFLPINRESETSIGNIN
  • ms-cxh://MSACXSIGNINAUTHONLY
  • ms-cxh://MSACXSIGNINPINADD
  • ms-cxh://MSACXSIGNINPINRESET
  • ms-cxh://MSAPINENROLL
  • ms-cxh://MSAPINRESET
  • ms-cxh://MSARDX
  • ms-cxh://MSASSPR
  • ms-cxh://NTH
  • ms-cxh://NTH/AADRECOVERY
  • ms-cxh://NTHAADNGCFIXME
  • ms-cxh://NTHAADNGCONLY
  • ms-cxh://NTHAADNGCRESET
  • ms-cxh://NTHAADNGCRESETDESTRUCTIVE
  • ms-cxh://NTHAADNGCRESETNONDESTRUCTIVE
  • ms-cxh://NTHAADORMDM?ngc=enabled
  • ms-cxh://NTHENTNGCFIXME
  • ms-cxh://NTHENTNGCONLY
  • ms-cxh://NTHENTNGCRESET
  • ms-cxh://NTHENTNGCRESETDESTRUCTIVE
  • ms-cxh://NTHENTORMDM
  • ms-cxh://NTHENTORMDM?ngc=enabled
  • ms-cxh://NTHNGCUPSELL
  • ms-cxh://NTHPRIVACY
  • ms-cxh://RDXRACSKUINCLUSIVE
  • ms-cxh://SCOOBE
  • ms-cxh://SCOOBE%ws
  • ms-cxh://SCOOBE/UPGRADE
  • ms-cxh://SETADDLOCALONLY
  • ms-cxh://SETADDNEWUSER
  • ms-cxh://SETCHANGEPWD
  • ms-cxh://SETPHONEPAIRING
  • ms-cxh://SETPHONEPAIRING?scenarioId=SwiftKeyCloudClipboard
  • ms-cxh://setsqsalocalonly
  • ms-cxh://TSET/ADDFAMILY
  • ms-cxh://WLT
  • ms-cxh://WLTUC

When I tested ms-cxh-full – I just ran opened “ms-cxh-full://foo” from Run dialog box and it messed up the desktop of the test system by blocking any window from being visible/interactive (with some exception for Taskbar, and Taskbar previews). Interestingly, when I posted it @SoloCarry6 and @cyb3rops pointed me to some other posts on the internet where people ran “ms-cxh-full://0” and got their desktop locked. Since no one knew how to disable it, here’s a quick solution:

  • Press WIN+R — this will open invisible Run dialog box
  • Run “taskkill /f /im UserOOBEBroker.exe” — this will terminate the “UserOOBEBroker.exe” process.

The Twitter-hood

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Some people write badly about you. It stings. But then you wonder… what, why, por que? Is this something I said, something I implied, something I thought of?

In the era of rapid judgment AD 2020 I found myself a subject to Twitter blocks and criticism on more than one occasion. My lesson learned bit is that dudes (so far dudes only) blocked me on Twitter because they don’t agree with my opinion/take/whatever. I always believed that if we were about to drive someone to obscurity by social media banning then it would require us to follow a meticulously explored path of questioning and probing, you know, to understand their point of view, but hell no…. it’s far easier to just block & forget.

Cuz Twitter.

As such I reply to my blockers: come at me with arguments and not blocks. I am not always right, but will listen and will change my mind, if you make me so…