The other day I ran into a page here. It mentioned that XP SP2 and Vista have an updated TCP/IP stack where it was designed to reduce the risk of your PCs to spread out the worm in case it gets affected. Some people found a way to work around it by manually editing the TCPIP.sys file. You might need this if you have to write an application where it attempts to connect to multiple PCs concurrently such as web crawlers, peer-to-peer application, system monitor where the remote hosts cannot be expected...

Many people have a problem when spawning multiple requests to get content from a server where only 2 requests can be processed concurrently. This is because the HTTP protocol standard suggests that HTTP client should not make more than 2 calls to a server at one time. However, in many cases, you have a need to make more than 2 requests at the same time by adding the following configuration in App.config. <?xml version="1.0" encoding="utf-8" ?><configuration> <system.net> <connectionManagement>...