Error: Only one usage of each socket address (protocol/network address/port) is normally permitted

Hi



I am trying to conenct to the server through TCp/Ip protocolu using VB script:

Sample code ref: http://support.smartbear.com/viewarticle/9004/ 



Can anyone help me in understanding the below error msg:

System.Net.Sockets.SocketException (0x80004005): Only one usage of each socket address (protocol/network address/port) is normally permitted.



Thanks,

Reshma