Search & Replace string

[Guest Marauder2k]

I have a standard text file which I'd like to search for a string, replace it, and save the file again.

The main part I'm having trouble with is the filewrite command. How can I get it to actually replace the string instead of just adding the new changed string to the end of the file?

This is what I have so far:

$file = FileOpen("setup1.txt", 1)
$aaa=StringReplace("%programfiles%", "programfiles", @programfilesdir, 0, 0)
FILEWRITE($file, $aaa)
FILECLOSE($file)

Thanks

[Guest Marauder2k]

Works perfect. Thankyou very very much