tomlogic

I have some problems regarding text filtering with Visual Basic.
In order to filter only some text lines I want to make a copy of the file as a temporary one, read this copy as a file input via basic and print out to the file.
The original text file looks as follows:
2.11.2007 11:35:36 The new source ‘SOCKET:192.168.0.75:1458′
has been accepted
22.11.2007 11:34:42 Network Services stopped (GT EX TEST)
22.11.2007 11:34:52 Network Services started (GT EX TEST)
….
There are hundreds of these messages. This text file is log file of a software.
In a copied text file I only want to copy the text lines (system messages) which I need to see.

I will be really grateful if you give
me some tips for the solution of the problem.