Hi Tyler, the path exmancmd installs to is fine (well, used to be before 11.2), and the other path is also valid for CEP extensions. Have you tried to turn the signing check off? (By adding the key "PlayerDebugMode" with value "1" to your registry under "HKEY_CURRENT_USER\Software\Adobe\CSXS.7" (for CC2017, for CC2015.x it needs to be "HKEY_CURRENT_USER\Software\Adobe\CSXS.6") Then you could also work with a "raw", meaning not-having-gone through-a-packaging-process, version of your extension (if you haven't done that already, but we don't know that yet).
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