Limit CMD processing to internal commands, safer and faster?

[Ed Dyreen]

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It's great to see someone else do all the work, and you are using jeb's appending, and you timed it and draw your conclusions, I really appreciate, thanks ben

ps.: I myself time by watching the clock, I'm so lazy

[jeb]

There is also another possible way to process the internal SET command, without disabling pathext.

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set "safeSet=set^ ""
call %%safeSet%% var=123"

There seems no difference in speed, wether you use safeSet or pathExt=: (the path should be still empty).

But one curious effect is that it fails when I change it to

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set "safeSet=set^ ^""

Then it tries to call a file named "set<space>.bat".

I can't see the reason why it depends on the second caret.