Depending on what your app leaves behind, you'll take examples from different launchers. Here is a table:

What the application leaves behind What launcher to use as a template
Settings in the registry 7-zip
Settings in HKEY_LOCAL_MACHINE Eraser
Settings in the program directorySumatra PDF
Settings in %APPDATA% FIXME
Settings in %USERPROFILE% FIXME
No settings, and standalone WinMD5Sum
Settings Elswhere FIXME