Remove ClickOnce from a WinForms app
If you refer the the ClickOnce Application Deployment Manifest files that appear in your Debug folder, go to Project Properties -> Security and uncheck 'Enable ClickOnce Security Settings'
You can also go to Project Properties -> Signing and uncheck 'Sign the ClickOnce manifests', but this is not necessary because it does not have what to sign if you do the first uncheck.
Now if you go to debug and delete .application files, at rebuild, there will not appear again.
I agree with the others, there is no need to "remove ClickOnce".
If you are really going for it though, IIRC all ClickOnce settings are in the .csproj file for the project, so remove all XML tags there that relate to ClickOnce. (maybe easiest to compare to a new app that hasn't been deployed with CO ever to see what tags are not there)
Other responses here are not correct or helpful. It is incorrect to state that it never needs removing.
One such example I experienced recently was when the application had a need for administrative privileges. Any attempt to embed administrative requirements into the manifest will result in the application not even compiling while ClickOnce is still present in the solution.
The following two steps enabled me to turn off ClickOnce (in Visual Studio 2010):
In the project properties,
- Signing tab: Untick "Sign the ClickOnce manifests"
- Security tab: Untick "Enable ClickOnce security settings"