Is there a convention to call the uninstaller program unins000.exe (on windows)?

I wonder why a lot of programs use the same name for their uninstaller, namely unins000.exe . Moreover, I can understand the unins part, that is like the setup name for installers, it is just English (shortened).

But why is everyone adding the three zeroes at the end?

1 Answer

unins000.exe is the default name used by Inno Setup. The unins part of the name is hardcoded into the program.

If many programs are being installed into the same folder, the second one would be unins001.exe and the third unins002.exe and so on.

See: Change the default name of an Inno-Setup uninstaller to avoid naming conflicts.