Question

I’m busy creating an custom uninstall application.

I would like to know how do i delete my application programmaticly after it has run.
I’m using a standard winform app coded in c#

We have an application that uses the clickonce deployment.
Now i wish to create an uninstall function for that.
I do already have the uninstall working fine, however i need to delete the uninstall application as well. it should just be a single exe file that needs to be deleted, after it’s done its thing.

I do not wish to have any remaining file left on the user’s machine

Answer 1

I think that your question is already asked here. You have to use the MoveFileEx API, which, when given a MOVEFILE_DELAY_UNTIL_REBOOT flag, will delete specified file on next system startup.

Here you have a sample:

internal enum MoveFileFlags
{
    MOVEFILE_REPLACE_EXISTING = 1,
    MOVEFILE_COPY_ALLOWED = 2,
    MOVEFILE_DELAY_UNTIL_REBOOT = 4,
    MOVEFILE_WRITE_THROUGH  = 8
}

[System.Runtime.InteropServices.DllImportAttribute("kernel32.dll",EntryPoint="MoveFileEx")]
internal static extern bool MoveFileEx(string lpExistingFileName, string lpNewFileName,
MoveFileFlags dwFlags);

MoveFileEx(fileToDelete, null, MoveFileFlags.MOVEFILE_DELAY_UNTIL_REBOOT);