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On Windows 2012, I'm trying to change the AppIDFlags value in the registry key HKEY_CLASSES_ROOT\AppID\{E62A7A31-6025-408E-87F6-81AEB0DC9347} to allow interaction with the desktop as documented here: http://forums.arcgis.com/threads/69842-Debugging-your-SOE-on-Windows-8

However, even when running regedit.exe as administrator I'm not allowed to change the value or take ownership of the registry key. On saving the value it says:

Cannot edit AppIDFlags: Error writing the value's new contents.

When trying to take ownership of the key, I get this error:

Unable to set new owner on {E62A7A31-6025-408E-87F6-81AEB0DC9347}

Access is denied.

Why am I not allowed to make any changes to the registry as administrator?

MvdD
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  • Ok, weird thing is that this works without problems on another Windows 2012 box. Any idea what could be wrong/different on this particular machine? – MvdD Nov 14 '13 at 20:09
  • Perhaps using something like Process Explorer, you could check and make sure that no other process on the system has a handle open to that key already? – Ryan Ries Nov 14 '13 at 20:22
  • That must have been it. A reboot made the issue go away. Thanks! – MvdD Nov 14 '13 at 20:42
  • @user18044 if you have resolved this issue, you might want to consider posting your resolution as an answer and giving yourself the check-mark so that this question doesn't float around as un-answered for the rest of time. – Mark Henderson Jan 19 '14 at 21:32

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Apparently some process was having a handle open to the registry key. After rebooting I was able to edit the value.

MvdD
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