What cookiepath to set ?

[Sharg]

Hi, in order to prepare to 2.0 upgrade I duplicated my forum in a www.mysite.com/forums2 directory.

This directory is not public, just for me testing 2.0 upgrade.

What cookie path should I set on the 1.15 CP for http://www.mysite.com/forums2 ?

/forums2 ?
forums2/ ?
http://www.mysite.com/forums2 ?
http://www.mysite.com/forums2/ ?

Thanks