You recieved the message from a skype user?
Also that address does not point to any scanning software that i myself am familiar with, besides which, if you were infected they would not have to tell you where to go other than to look for scanning software.
Also it mentions affected software, i have never seen a legit virus warning do that.
Most likely a spammer wanting to present you with a lovely keylogger.
If you are still worried you can try the following.
* Avast antivirus - fantastic for getting rid of trojans and rootkits.
* AVG internet security 8 - This is on a trial period but this scans and removes EVERYTHING that is bad, might take a while to scan but it gets the job done.
* Kapersky - on my original windows sp1 this baby would solve all of my problems, that is until sp2 and sp3 where it seemed to get glitchy.
You might also be internested in spybot and adaware.
Hell i have AVG, Avast, spybot, adaware, hijackthis, zone alarm and spyware blaster.
NOTE - spyware blaster is not a scanner, it is more of a shield that will prevent a lot of doors opening to your computer, thus is a preemptive against infections.
SITE ADVISOR - Whenever you come up to a site you do not trust or are unsure of, either install this or input the address on their website, this will tell you if they have found anything malicious onboard.
Hope this was helpful in some way to you.