I’ve been struggling with recent versions of Visual Studio 2017 and ClickOnce for several months, without being able to resolve all my issues (impossible code signing with an external tool, broken automatic update, broken file associations after manual update, etc.) so I decided to give up ClickOnce completely.
Getting rid of failed ClickOnce installs
In order to remove all ClickOnce applications, I followed these steps:
- Uninstall what can be uninstalled from Add and Remove Control Panel applet.
rundll32 C:\Windows\system32\dfshim.dll CleanOnlineAppCache
- Delete all content from
- Delete shortcuts still found in the Start Menu, by
mage.exe can be found in one of the Microsoft SDKs subfolders.
In my case, I found it at
C:\Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.6.1 Tools. Just in case,
here is a copy of mage.