Full Disclosure: Any particular reason why MS is scanning me for port 80?

[silence_is_best () hushmail com]

[2049398.163651] IN=ppp0 OUT= MAC= SRC=65.55.52.88 DST=my.xt.ip LEN=48
TOS=0x02 PREC=0x00 TTL=119 ID=27234 DF PROTO=TCP SPT=36925 DPT=80
WINDOW=8192 RES=0x00 CWR ECE SYN URGP=0

WTH...I didn't send any Skype messages or anything ;)

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