Connecting to network share

DOes anyone know how to pass authentication information to a network share? (i.e. username and password) There are plenty examples for HTTP, SQL Server etc but nothing I can find for just connecting to a UNC share and sending authentication information!

Thanks,
Larry

See if this would be helpful , it's C# code though .
http://www.codeproject.com/csharp/NetworkShares.asp

Interesting, but still doesn't seem to be able to post user name and password to establish the connectivity. My app is an application, that does polling of certain locaqtions based on specifications which include UserName and Password for the share location, can't seem to figure out how to make that connection.........