|the intended output from both was intended to be the same and what Dave had as his second sample output. The missing semis were an oversight since I wasn't able to copy code directly the actual generation of the batch file being rather more fugly and not suitable for a copy/paste/cleanup process.
I'd posted the question since I didn't know what the StreamWriter was doing internally. I strongly suspected that the later would be faster if the StreamWriter had a simple implementation, if it was using a stringbuilder as an internal buffer and waiting until it had a predetermined optimum amount of text before dumping to the disk there wouldn't have been any actual speedup from the change.
I guess I should've explained what I was doing a bit better, but I'd something else to do and was trying to post as quickly as I could while still being understandable. Obviously I failed in the attempt.
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