I know how to fix your MIRC error.
iphlpapi.dll
Easy Fix, its not the file.
Its mirc.
Open Mirc, do not connect to a server
Go to FILE
SELECT A SERVER...

Under Connect

Options -> Advanced...
Make Sure DCC & Other are NOT Checked
Check Use Random Ports
Make Sure Bind Sockets to IP Address is NOT Checked.
Click OK

This will solve the problem.

Next Step just incase.

Connect -> Identd

Enable Identd Server

User ID: Whatever you want
System: UNIX
Port: 113

CHeck Show Identd Requests and Enable Only when connecting.

If you have any other problems send me email @

ssjgokoux2@yahoo.com