There's a few "features" that just don't fall under a larger category.

Well, AIM has this really stupid feature to automatically send an invitation to a "friend" to join AIM. You just give it an email address and a short message, and it's sends it for you.

In response, the server sends a "Invitation Successful" command to the client.

This looks a little complicated. You have to open a connection back to the authorizer again, and then negotiate the whole process there. It's a total of 15 or so commands. Maybe later.

Since this fits into quite a few different areas of AIM, it's current home is here in the miscellaneous section.

Basically, many times throughout the life of your AIM session you'll have to pass around and parse this user info block, which consists of a few basic elements that represent an online user and his/her status. This shows up in ICBMs, online buddy notifications, search responses, and more. If you see "user info" referenced anywhere throughout this protocol, this is what that means.

Where TLVs can be of the following types:

* See here for a description of the capability block.