iam unable to connect the win messenge thru winproxy

[shailfx9]

Dear sir
iam unable to connect the win messenge thru winproxy
till day b4yesterday it was working fine
suddenly i am unable to connect winmessenger
but at the same time i am able to browse n surf the net and connect other
apps like yahoo
i have already enabled sock port
can u help me to sort out
when i use the app with direct internet ie without proxy i am bale to
connect thru winmessenger

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shailfx9