In Osclass we dont have premium ad expiratioin .This Pluigin enables the admin to set the expiration date for premium ads
1) Admin can able to set the expiration date for the premium Ads
2) User Friendly Administration Page
3)It Required some custom code to add(This can be given in plugin with clear description)
Unzip the folder and put the folder in your plugin directory (i.e oc-content/plugins/)
Open Admin panel and click on install
Then your Installation process is completed .
In order to use this mouse over on plugin icon in admin panel where you find Manage Premium Ads link . click on that and you premium ads page is displayed..you can set expiration date for those