RE: Issue using ASP.NET forms authenticationwith frame redirect

Hi Dieter,

I'm not very clear about your current configuration now, so I need to ask
for some information first:

1) Are you trying to achieve Single-Sign-On between different website
domain? Usually the forms authentication cookie (if cookie is enabled) can
be shared by domains subd1.domain.com and subd2.domain.com, but not between
subd.domain1.com and subd.domain2.com.
2) Do you mean that a page in the frameset is redirected to
http://subd.provider2.com and you will be presented two login pages? Is the
first login page also from domain provider2.com?
3) Are you encrypting forms authentication ticket? If this is the case, you
will need to make sure the machine key used between two websites are the
same, they're auto-generated by default.

Please see if following pages help:

#Single Sign On across multiple ASP.NET applications > Developer's Corner -
Resources for Developers > Knowledge Base
http://www.developer-corner.com/Resources/KnowledgeBase/tabid/118/articleTyp
e/ArticleView/articleId/23/Default.aspx


#Hosting Multiple Web Applications
http://msdn2.microsoft.com/en-us/library/aa302436.aspx


Regards,
Walter Wang (wawang@xxxxxxxxxxxxxxxxxxxx, remove 'online.')
Microsoft Online Community Support

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