How to run code before uninstall of C# windows forms app?

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1.00/5 (3 votes)

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I need to remove the program from Windows startup on uninstall.

What I have tried:

Installer.AfterUninstall Event

but i cant use it well

Posted 16-Sep-16 4:14am

john1990_1

Updated 18-Sep-16 9:26am

Sean Ewington

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[no name] 16-Sep-16 10:18am

Okay... and? Do you have an actual question that you think we can help you with?

john1990_1 16-Sep-16 10:21am

I want a way in c# to run code when the user uninstalls the app. (to delete it from startup leaving no trace in the startup menu)

Wessel Beulink 16-Sep-16 10:28am

Than create a msi...

Wessel Beulink 16-Sep-16 10:29am

Or delete the files which you want to delete

john1990_1 16-Sep-16 10:37am

how to create an msi?

[no name] 16-Sep-16 10:31am

Okay.... That is a function of your installer not your program.

john1990_1 16-Sep-16 10:33am

so there's no event for when the user uninstalls the app? i saw Installer.AfterUninstall Event, check that out please.

[no name] 16-Sep-16 10:41am

Yes there is. There are probably many event depending on what install creation package you are using. Please learn how to ask questions and we won't have to try and drag information out of you.

john1990_1 16-Sep-16 10:42am

what is the way?

[no name] 16-Sep-16 11:20am

What is the way for what? Go do some research, choose an installation creation software package, learn how to use it. Then learn how to ask questions.

john1990_1 16-Sep-16 11:35am

I publish my program in C# with Visual Studio, is there an event for uninstall? what do you mean installation creation software, how to use them with C#?

[no name] 16-Sep-16 11:37am

Maybe someone else can help you. I can't teach you how to ask questions, And dragging these tidbits of information out of you is frustrating.

john1990_1 19-Sep-16 16:43pm

when the user goes to Programs And Feature in Windows and right clicks my program and presses uninstall and then ok, i want to run code that deletes the program from startup (i know how to delete it from startup i just want a chance to run the code when the user uninstalls the program, and no trace for the program would remain in startup in task manager)

Suvendu Shekhar Giri 16-Sep-16 13:14pm

if i understood you correctly, you want a piece of logic to be executed just before the uninstall action executes, right?

if u could have given an example, would be easier for we people to understand your issue correctly.

john1990_1 19-Sep-16 16:42pm

when the user goes to Programs And Feature in Windows and right clicks my program and presses uninstall and then ok, i want to run code that deletes the program from startup (i know how to delete it from startup i just want a chance to run the code when the user uninstalls the program, and no trace for the program would remain in startup in task manager)

Suvendu Shekhar Giri 16-Sep-16 13:27pm

c# - Prevent uninstall in setup project with OnBeforeUninstall - Stack Overflow[^]

check this.. you override the OnBeforeUninstall event and write your logic there. if your requirement is so. otherwise let me know whatelse do you want.

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RickZeeland · Answer 1 · 2016-09-18T09:26:00

Solution 1

Microsoft ClickOnce technology can do this automatically for you, see these articles:
ClickOnce - Quick steps to Deploy, Install and Update Windows Based Client Applications[^]
and All You Need Is One - A ClickOnce Love Story[^]

The only limitation of ClickOnce is that your application is installed in a safe separate user directory.
But there are ways to circumvent this: http://matijabozicevic.com/blog/wpf-winforms-development/running-a-clickonce-application-as-administrator-also-for-windows-8[^]

The answer above is not what you asked for, I think this will answer your question:
c# - Disable startup program in registry; - Stack Overflow[^]

Posted 18-Sep-16 9:26am

RickZeeland

Updated 18-Sep-16 9:45am

v2

Comments

RickZeeland 18-Sep-16 15:35pm

Oops, I'm afraid I read "Windows Start menu" instead of "Windows startup", but the information might be of interest to you anyway ...

john1990_1 19-Sep-16 16:40pm

I know how to add or remove program from startup, what i want is when the user uninstalls my program, on uninstall, i run code, the code deletes the program from startup in the way u said and leaves no trace for my program.

RickZeeland 21-Sep-16 13:25pm

Personally I use Inno Setup which allows scripting (Pascal) in the uninstall section.
But an alternative might be Squirrel: https://github.com/squirrel/squirrel.windows