How can I create asp.net application on my sub folder?

Control Panel V3 > Hostings > Websites
If you want to run your asp.net application in your site's sub folder, you should set the sub folder as asp.net application to make it working. Please follow the instructions below to set it.

1. Login to your hosting control panel.
2. Go to Websites --> the specific site --> Create .net APP
 
3. Select the folder which is needed to set as application, and click on create button to create it.