Question

i developed an updater application for my windows app. They are different projects under the same solution and they run as different processes. when i run the app it checks for updates at startup (as another process). when i click update button it tries to download files to the installation location. (i am using the .exe in debug folder i don’t create setup file) Everything works fine but the main application (app.exe) can’t be overwritten because it is used by update process. but in update process i kill app.exe and app.exe goes from task manager too. i couldn’t find anything, how main app.exe is used by update. has anyone any idea how update uses main app ? how can i watch it? in which line it starts using the other app?

Answer 1

1. Rename app.exe
2. Insert new app.exe
3. Close running, old app.exe
4. Start new app.exe
5. Check for renamed app.exe (in newly started app.exe)
6. Delete old, renamed app.exe