This plugin allows you to host your own plugins on your wordpress installation.
There are a few things that you need to do to make sure that you can use this plugin.
This plugin makes use of the ZipArchive class, introduced in PHP 5.2.0. You must be running at least this version to use the plugin.
Like plugins hosted on wordpress.org, you must include a valid readme.txt file and the proper plugin headers in your main plugin file. Check out a sample readme.txt file and use the readme validator. The Sell My Plugin plugin uses the readme.txt file and the plugin headers to render information about the plugin.