I filed this as
https://fiddler.ideas.aha.io/ideas/FID-I-251 because I didn't see an existing report. I checked in Process Explorer and I don't see what it's looking for that's not there. Fiddler is installed as admin in C:\Program Files (x86)\Fiddler2. I tried in a VM with the same install directory as admin and I can't reproduce the error, the autocomplete loads fine. Both host and guest are Windows 7 x64 with Fiddler v4.6.20173.38786 and FSE 2.6.2.0.
Eric do you have any idea where I would look to solve this? Is there a registry key or something that may not be applying correctly?