Sidder: Quickly see which User Profile Disk maps to which Domain User

UPDATE November 23rd 2014: I removed the download link. There’s a new version available, along with a new blog post.

Working with a Remote Desktop Services deployment where User Profile Disks are used in an environment with a lot of users.
During testing / acceptance stages we noticed that it could be cumbersome to translate the SID in the filename to a user account in the event where we’d need to delete the User Profile Disk for a certain user.

And so Sidder was born.
Sidder is a small tool (just one executable), which when run needs the folder that holds the User Profile Disks. Once selected it will parse all the filenames and translate these to NTAccount names (domain\username). It also shows the last modified date for the profile disk file.
It was built on .NET Framework 4.5, so it runs natively on Windows Server 2012 and Windows Server 2012R2.

Sidder will remember the last folder you selected and the column-widths in the view.

I’d love to hear some feedback on this little tool.


25+ years experience in Microsoft powered environments. Enjoy automating stuff using powershell. In my free time (hah! as if there is any) I used to hunt achievements and gamerscore on anything Xbox Live enabled (Windows Mobile, Windows 8, Windows 10, Xbox 360 and Xbox One). Recently I picked up my Lego addiction again.

Tagged with:
Posted in Remote Desktop, Tools, Windows 2012, Windows 2012 R2
26 comments on “Sidder: Quickly see which User Profile Disk maps to which Domain User
  1. rockafella says:

    Reblogged this on noiseandgraphics.

  2. Thomas Jakobsen says:

    Hi. It look great, but i would be great, if you could enter a UNC-path to a share containing the UPD.

  3. Jesse Fster says:

    Great tool and site. Lots of very useful and wel written articles! In Sidder my UVHD template and some profiles are showing SID Resolve Error. I also don’t see the link in C:\Users to the UVHD like I used to. What might that be? I’m totally stumped and documentation is hard to find.

    • Arjan Mensch says:

      Hi Jesse.
      Thanks for using Sidder.
      Sidder is used to resolve profile disks to Active Directory accounts. Templates and local users (like service accounts and administrator) can get a profile disk as well, but these will resolve in a SID Resolve error. This is normal since they do not have a SID in Active Directory.
      You cannot use Sidder for C:\users. It can only be used in a folder where UVHD-.vhdx files are located.



  4. Eric says:

    Nice tool! What i would like to see is a refresh option and a delete option.

    • Arjan Mensch says:

      Hi Eric,
      Refresh should be easy. Delete is a possibility but I’d need to think about what to do should the VHDX still be mounted, or otherwise in use?

      • Eric says:

        If the VHDX is still mounted or in use you are simply not able to delete de file, this is a Windows default behavior.

      • Arjan Mensch says:

        That I understand. But it could be some process is locking it, even if the user is logged out.
        I’m thinking of ways to track which process is preventing you from deleting it, in case it’s locked..
        Anyway, good options, I can see the need for deletion and refresh.

      • brendan says:

        Just the tool i was looking for, would it be possible to export the list to CSV, TXT or excel format.

        love your work!!!

      • Arjan Mensch says:

        Hi Brendan,

        I’ll put that on the feature list for the next version as well, thanks!

  5. Aurimas N. says:

    Very useful. As mentioned before support for UNC paths would be great.

  6. Martin says:

    Awesome tool.
    Just one question. Is there any option to save/load the UVHD path automatically when the Sidder starts ip?

  7. Nobody says:

    Yee, if You set in windows explorer “Shared with” column visible it gives same result!

    • Arjan Mensch says:

      Hi Nobody,
      I’m not sure what you mean? If I open the profiledisk folder (where all the .vhdx files are) and enable the Shared With column in the view it remains empty? You have a username to sid mapping in that column?

      • Yash says:

        Open Windows Explorer View–>Choose details–>Select “Shared with” click Ok. this will give the usernames the UVHD shared with.

        i love the SIDDER. would like to see some options like right click and mount,backup,rename, exporting the list to .cvs or xls.

      • Arjan Mensch says:

        Hi Yash,
        I’ll put your remarks on the wishlist for the next version.

  8. Jual Tas Rajut says:

    Hurrah! In the end I got a web site from where I be able to
    actually get helpful facts regarding my study and

  9. Stuart says:

    Thank you! Very useful tool. Any eta on an update for UNC paths though? Mapping drive for now but that would make this perfect! It’s already ideal for managing an RDS 2012 farm from RDweb.

  10. Osama says:

    A very handy tool … :D

  11. Jeff says:

    Is there a way to save these results to a csv or Excel file?

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