Command line question

So as a follow-up to the CVE-2021-40444 situation from last week, I tried to use a dos command to delete the default value from the .doc key in HKEY_CLASSES_ROOT. It works locally on my vm, but fails when trying to execute as a BigFix task. I’m sure I am missing something, but here’s the command:

dos reg delete "HKCR\.doc\ShellEx\"{8895b1c6-b41f-4c1c-a562-0d564250836f}" /ve /f

Any help is always appreciated!

That key path does not look correct… missing some slashes?
You seem to have an extra doubleqoute in the middle
You probably need to escape the leading curly bracket {{.

dos reg delete "HKEY_CLASSES_ROOT\.docx\ShellEx\{{8895b1c6-b41f-4c1c-a562-0d564250836f}" /ve /f

I just edited the post to use CODE tags. Some of the backslashes were lost due to HTML formatting and should appear correct now.

Yep as soon as I read your post, realized the curly bracket issue, thanks for the catch!