More precisely, Windows NT 4.0 with a previous release of this installed got certified, while Linux never did.
Which was the point where I stopped believing that the Unix trademark meant anything useful.
Cheers, Ben
"good ideas and bad code build communities, the other three combinations do not" - [link|http://archives.real-time.com/pipermail/cocoon-devel/2000-October/003023.html|Stefano Mazzocchi]
Unix (as per the certification) is a committee beast. Lots of tradeoffs. IIRC there are historical system calls that Linus refused to implement, saying they were brain dead. So even if a vendor coughed up the $$ to try to certifiy a version, it wouldn't pass.