any explantion for this weird behaviour?

Hi,

The situation: windows xp pro sp2 (IIS 5.1).
In the windows of IIS management, all virtual maps are under "Default
website".

The property "Map security" is first set on "Windows Integrated
Authentification".

There is a virtual map with property "Map security" set to "Anonymous
allowed" because this asp.net application is for anonymous users who must
login before they can perform some actions in the webapplication.
..
There are a login control, a creatuserwizard, password recovery .... in the
login.aspx. There is ASPNETDB.mdf located in dir. App_Data.

Now, when a user tries to login (or to create a new membership user),
notyhing happens (user is not logged or no new membership is created) but
there no error.

After hours searching the solution, I changed the property "Map security"
of the Default website to "Anonymous allowed" and ... eveything works!!

My question is: why does it not work when the property "Map security" of the
Default website is set to "Win. Integ. Auth" and it works when it is set to
"Anonymous"? It's like the property of the virtual map is overruled by the
property of the Default website...
Another virtual map with property "Map security" set to "Win. Integ. Auth"
works always, whatever is the property "Map security" of the Default
Website (anonymous or win. int. auth).

Thanks for explanation about this.
Mich