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 directory|Sumatra PDF         |
|Settings in %APPDATA%            |FIXME               |
|Settings in %USERPROFILE%        |FIXME               |
|No settings, and standalone      |WinMD5Sum           |
|Settings Elswhere                |FIXME               |