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I have two site collections existing in two different web applications. I am the site collection administrator of both.

I have created an HTML file which is placed in the layouts folder and uses the SPServices jQuery application to execute GetRolesAndPermissionsForCurrentUser.

In one of the site collections when I run I get:

<Permissions value = "9223372036854775807"/>

Which is true and means I have Full Control.

If I try the same script in the other web application I get:

<Permissions value = "4611688150878591999"/>

I really do not understand what this value means.

The reason why I was trying this is because in SharePoint Designer I am not able to open the site with:

<Permissions value = "4611688150878591999"/>

Can somebody let me know why I see this behaviour?

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up vote 0 down vote accepted

I found out the Why this permission value

<Permissions value = "4611688150878591999"/>

If we alter the permission level of Web Application in Central Administration . If we uncheck some values and check all the levels again sharepoint does not put the <Permissions value = "9223372036854775807"/> back again it does put the

<Permissions value = "4611688150878591999"/>

A detailed post is here link text

And these was not the reason for Sharepoint Designer behaviour absurd. This was because there was an httpmodule configured for 301 redirects. Now when i removed this module . I was able to access the Sharepoint Designer again

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