I have a Question when study source code about Remote Control.

[Waltz_Fan]

Set GPIB = CreateObject("objVISA.VII")
  If GPIB Is Nothing Then
     MsgBox "Could not create GPIB object"
     Exit Sub
   Else
    GPIB.InterfaceName = "GPIB0"
  End If

I have two questions about the above source code.

1. What is the meaning of "objVISA.VII"? Why should Creatobject ("objVISA.VII")

2. What can I find the explanation about "GPIB0"?

Thank you.

[Waltz_Fan]

Sorry, I have a mistake that send this quesion twice. Please delete this one.

Thank you, Web manager.