Multiple Programs – NETSHELL.DLL

Netshell.dll will appear in your Windows\System or System32 folder. It is a Microsoft file called the "network connections shell". It is a module that helps to implement and manage your network connections. It also contains your network status icons. We'd recommend leaving this file in place.

More information can be found at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/netshell/netshell/netshell_start_page.asp.

Here are fixes to a few common problems involving this file:
Delay logging into Network using Windows XP - http://support.microsoft.com/default.aspx?scid=kb;en-us;826239>

Wireless Network Adapter Appears as Disconnected - http://support.microsoft.com/default.aspx?scid=kb;en-us;324024.

Safe

Microsoft