ICQ doesn't work through web proxy

I have a problem with ICQ working through web proxy. I’ve configured non-transparent web-proxy and configured different ICQ clients to use it. None of them work.
I’ve tried different settings in proxy access list and even allow any connection from ICQ computer src-address but still without any success.
How to make ICQ work with mikrotik web proxy?

Not icq nor skype!
+1 to question!

Are you sure the problem are web-proxy and not ICQ?
ICQ display advertising, and with a proxy between, you can remove them…

have you asked this before?

My mistake, skype works, but not ICQ

I tried miranda and qip
both doesn’t work

pardon somehow qip works, after delay it connects. i will watch it