The irony with everyone's disdain for this is that there is nothing in the scene that is completely divorced from reality.
The chick is clearly talking fast... so maybe she is talking about 2 action items
1) Create a GUI in Visual Basic
2) and also track an IP address
Or, maybe she plans on creating a VB GUI wrapper around some networking tool. Because we know they couldn't just use the fucking command line, its gotta have all that pretty graphics and shit. And though you may not like it, there is no technical reason that all the graphical nonsense in CSI is cranked out by some dude writing VB6 or VB.NET code... VB6 is a shitty ass language... but yes you can do anything with it.
There are a number of "realistic" interpretations around what was being said. That being said
1) Any explanation is completely *tasteless* to the sensibilities of an experienced software/networking professional
2) CSI still sucks ass
3) The digital zoom in CSI is sickening, because they use it every fucking time.