MSN live message8 error code: 80072745 Solution

Use NotePad to enable c: \ windows \ system32 \ drivers \ etc \ hosts to add
65.54.239.80 messenger.hotmail.com
65.54.239.80 dp.msnmessenger.akadns.net

This vulnerability occurs when DNS queries are performed. Therefore, MSN cannot access the server. This method allows your computer to see messenger.hotmail.com and you will know that you want to transfer the IP address to 65.54.239.80 without having to check the IP address through the DNS server.
However, when the micro-engine server is real, this method does not work. You can only wait patiently for the server to restart.

 
Clean DNS Cache:
Ipconfig/flushdns

Restart DNS Cache service:
Net stop dnscachenet
Start Dnscache

Delete all items under c: \ Documents and Settings \ User Name \ Application Data \ Microsoft \ MSN Messenger and log on again