.Net version of PHP's preg_match

I've built some code in PHP before which reads a string of data and finds relevant parts based on selected criteria being a "match"

How can I do this in .net (VB)?

for example my string might be

B/E1297G

where the B/ with up to 6 charters is a order number?

are you familiar with regex?

vb.net Code:

Imports System.Text.RegularExpressions
 
Public Class Form1
 
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim s As String = "some text B/E1297G some more text"
        MsgBox(New Regex("\sB\/[A-Z]{1}\d{1,4}[A-Z]{1}\s").Match(s).Value)
    End Sub
End Class