Parsing text in .NET

[MDWeezer]

I have a simple VB application that I'm trying to build. The user selects a text file from a dialog box and then I need to parse the data in the file.

The layout of the file looks like this:

C:\ xxxxxx ; yyyyyy ; zzzz C:\ xxxxxx ; yyyyyy ; zzzz C:\ xxxxxx ; yyyyyy ; zzzz C:\ xxxxxx ;
yyyyyy ; zzzz C:\ xxxxxx ; yyyyyy ; zzzz C:\ xxxxxx ; yyyyyy ; zzzz C:\ xxxxxx ; yyyyyy ; zzzz

I need to generate a output so it looks like this:

C:\ xxxxxx ; yyyyyy ; zzzz
C:\ xxxxxx ; yyyyyy ; zzzz
C:\ xxxxxx ; yyyyyy ; zzzz
C:\ xxxxxx ; yyyyyy ; zzzz
C:\ xxxxxx ; yyyyyy ; zzzz

What would do the trick for this task? I've got a StreamReader object using:
Dim oFile As StreamReader = New StreamReader(OpenFileDialog.FileName.ToString)

Now I just need to parse through the text, find out where the "C:\" are write a line to a new text file until I hit another C:\ in the file.

I'm verrrrry new to VB .NET, last version of VB I used was VB5; yikes!

Thanks in advance

[MDWeezer]

Here is where I'm at so far. I can open the file, read it and re-write it with no problem to the output file. I need to figure out how to split up the string every time it encounters a "C:\".

Dim oFile As StreamReader = New StreamReade (OpenFileDialog.FileName.ToString)
        Dim output As StreamWriter = New StreamWriter("Output.txt")
        parseProgressBar.Visible = True
        Dim line As String
        line = oFile.ReadToEnd()
        line.Split("C:\")  // This is what I need to get working.
        output.WriteLine(line.ToString)
        oFile.Close()
        output.Close()