IFD: failed to view in IFRAME CRM pages...( cannot be found)

Hi,
i view in IFRMAES pages for instance from UserDefined folder.

set the file like that to the frame.src :"\UserDefined\area.aspx?id=23232"
using the relative path.

if i try to work with windows Auth all file but if i try to open the same page from out side ( IFD - Form Auth) the page field to view.

the reason is :

CRM failed to add the full extenstion path if it's form auth...in windows auth all works fine.. .

solution:
i check in my code if the server.location from IFD or windows auth..

if IFD i gave to frame.src the full path for instance:
http:\\mymachiume.crm\UserDefined\area.aspx?id=23232"
now works fine.

thanks
Rami Heleg