vb.net 可执行文件可以替换自身吗？如何替换？

Question

I want to make a simple updater for my program, but I do not want a separate executable. Is this possible?

So I check a location (ftp,http) for lets say version.txt, I compare versions. Now what? Can I overwrite my running executable and how. My program is like 4 MB ...

If it is not posible just tell me please :)

Update:

My.Computer.FileSystem.RenameFile("Test.exe", "SecondTest.exe")
My.Computer.FileSystem.CopyFile("12.exe", "Test.exe") 

This seems to work. So I rename my current executable, then put the other on its place ... Am I looking for trouble here?

Answer 1

Ok so this works like a charm:

Public Class Form1
    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        My.Computer.FileSystem.RenameFile("Test.exe", "oldversion.exe")
        My.Computer.FileSystem.CopyFile("newversion.exe", "Test.exe")
        Process.Start("test.exe")
        End
    End Sub
End Class

So when test.exe runs, it renames itself to oldversion.exe then copies newversion to test.exe and starts it, then shuts down.

Now all I have to add is check for oldversion at every start and delete it if it exists. The trick was to rename itself ...