Extend Window Authentication to FBA in SharePoint 2010

Hi,

I have created Web Application with Classic Mode and running in port 100. Now i want to extend the same with FBA in another port 101.

In Central Admin, Authentication Providers --> Authentication Type (Form) is disabled.

Default in 100

Intranet in 101

Both Zone's are in Windows provider. I want to convert Intranet zone in to Forms.

Thanks & Regards

Poomani Sankaran