I don't know much about CD-Keys and there properties, or what is or isn't capable with them.  I just thought about this the other day, about 4 or 5 years ago me and a buddy used to play Starcraft on the same key, we even had it to the point where we had 3 people using the same key, does anyone find that odd, or is it something that was possible?

That was called "Spawning", where a CD-Key could be used by up to 8 people.  Spawn games could run without the CD.  The catch was that Spawns had no single player and could only join games created by the one running the master (IE: with the CD, and not a Spawn install).  Battle.Net restricted Spawns to public channels after people started abusing them for massloading purposes (where 3 proxies and 4 keys would yield 28 bots).

About 4 years ago, me and my friend. We were sharing some of our wc3 keys at the time. And I logged on with the same key as he had logged on with, not noticing I checked with him how he had loaded so many, seeing as I was using his Cd-Keys.

Once we fiqured out that we could both share the same Cd-Key, we just switched list of all our Cd-Keys and managed to both be sharing the same Cd-Key. Though, if I tried using the same Cd-Key twice it wouldn't work, nor with other friends. Only with him and me.

After about 4 months this no longer worked, and about 15 of the keys were voided/banned.

We weren't using Spawn or anything, maybe it was just some strange glitch occurrence in Battle.net.

[EDIT] To clarify, the Cd-Keys that were voided/banned weren't misused. They were just for loading idle bots in our channel and such. Not flooding or anything. In other words, Battle.net clearly banned them for some unknown reason.

1 key could be used twice with a proxy.

We weren't using Spawn, we were both using the regular client, and both had installed on the same key.  And we also joined other peoples game, just followed each other.

[quote author=rabbit link=topic=14599.msg149213#msg149213 date=1143463277]
1 key could be used twice with a proxy.
[/quote]I get that.  A "proxy" is technically just another IP.  Two people can use the full version with the same key if their IP's are different.  Thanks.

[quote author=rabbit link=topic=14599.msg149228#msg149228 date=1143503509]
[quote author=rabbit link=topic=14599.msg149213#msg149213 date=1143463277]
1 key could be used twice with a proxy.
[/quote]I get that.  A "proxy" is technically just another IP.  Two people can use the full version with the same key if their IP's are different.  Thanks.
[/quote]

Der, sorry, wasn't thinking.