I faced this error with mRatio, the long message of that error.
I was testing mRatio on windows 7. First i thought this may be a mRatio's bug, because expacially at same torrent i got this error message. Later i made a little search.An attempt was made to access a socket in a way forbidden by its access permissions.
In same situation, first thing you should do is looking at your firewall and antivirus software which can block that connection. Temporarily disable them an try again.
If no solution, temporarily disable UAC and try again.
If no solution, you use an ip blocker like peer guardian etc.. temporarily disable it.
My situation was about peer guardian, after disabling it, this error message went away.
keep going with sbi