CAP APIs for Lotus, Miscrosoft and Netscape

["Neelima Kalidindi" <nkalidindi@xxxxxxxxxxxxx>]

Hi All,
    I've asked this question before as well.. but I'm still trying to
find an answer. I'm looking for off the shelf APIs (hopefully in Java or
C) which allow me to connect to a Calendar Store and send queries such
as finding out if a person is busy in a given time range etc. I
interested in APIs that comply with the CAP protocol. Do Lotus,
Microsoft and Netscape provide such APIs (even if it is specific to
their calendar product)? I did not find this info on their web sites,
hence this posting. I'd appreciate any leads.
Thanks,
Neelima