Configuring IIS 7.5 to be FIPS 140.2 compliant

It means that the server supports SSLv2 handshake, even though it may not support SSLv2 itself. Essentially it's an optimization. Instead of a client first requesting SSLv2 (with a SSLv2 handshake) and failing (if the server does not support it), then having to request SSLv3 or better (with a SSLv3 handshake), the client can use the SSLv2 handshake to indicate support for newer protocols.

http://sourceforge.net/mailarchive/forum.php?thread_name=20100629171623.43012oj4b2hgrzi8%40webmail.mxes.net&forum_name=ssllabs-discuss

You can confirm that it is an issue with the SSL Labs Checker by changing the configuration in your browser to only accept SSL 2.0. If you can connect to your site, then SSL 2.0 is still enabled. Otherwise, it is disabled.