VDS = Drain-source voltage (the wotking votage)
ID = drain current
PTOT = total power consumption
Channel = whether P-channel or N channel( depends on your application ckt config)
Case = physical package type
the values shown must be min,typical and maximum values.
your question is not clear.I didnt understand properly.
do you want to switch on a remote control with the parallel port?
putting in another words, is that you want something to be switched on/off(3.5V) using the parallel port-5V.
can u clarify?
here are the circuits.
The first one is a simple one and the second one is a better one as it provides an isolation between your PC and the external circuit.
May be you can try with the first one as it needs just a commonly available trans and a res.