How to give write permision to virtual directory

Hello Gurus,

I have created a virtual directory in IIS 7.5 and wanted to give write permision to that directory. There is a option in iis 6 to give write permsiions but I just wondering how it is given in iis 7.5. Once I tried to uplade some files to that directory it is failling because it is not have write permission.

Please help me.

Thanks,

Saman