In some random attempts to DCC send (in order to get Omen serve working), mIRC crashes with a send/don't send error report, and it keeps bringing up iphlpapi.dll Any ideas or links to a threat that may have some information related?
Try doing a search on the site for that dll, searching all areas, and remember to expand the time range. I set the time range for 5 years and got 27 other posts.
Some people have found that using sat's replacement iphlpapi (found here) has solved the issue. Please make sure you read the accompanying readme before using it.