msn

MSN Explorer 9

The client thinks Microsoft is still there

The chain

Four steps, each one hanging off the last

If one of them fails, the client stops - usually without saying why.

1. Directory

The client asks the Nexus where to turn. The answer lands in the registry and stays there until something deletes it.

2. Sign-in

clientpost.srf takes the address and password. The answer carries success, the ticket, and the target the client jumps to afterwards.

3. Permissions

Which services the account may use. Without the right identifier the client considers itself not activated.

4. Installation

The wizard fetches package descriptions and program files, creates the account locally, and starts MSN Explorer.

The endpoints

Endpoint What it is for
client.xml directory - where everything else lives
clientpost.srf sign-in
ClientProfileRequest.srf profile
getpermits.asp permissions
enumerate.asp member list
getxgl.asp wizard pages
msninstallersvc.asmx product data
/downloads/ program files
gateway.dll messenger

What is answering right now is on the status page.

Not an offering by Microsoft or AOL. MSN, MSN Explorer and AOL are trademarks of their respective owners.

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