I too worked at AOL back then, but on the AIM team. When we bought ICQ the presence side of ICQ ran on the largest machine Dec would sell you. The vertical scal

I too worked at AOL back then, but on the AIM team. When we bought ICQ the presence side of ICQ ran on the largest machine Dec would sell you. The vertical scaling worked very well, tho. Also porting the host code to Digital Unix made it ready for 64 bit in general. We eventually ported it to the cheaper clusters of Sun then Linux hosts that normal AIM used.