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Thx for answer.

I assume there is no easy way to output colored text and that's why he used this trick with "findstr /a" to achieve that.

Probably making sure that such file name or directory doesn't exist would be needed before trying to create it and then delete it...

Hello, sometimes I want to block internet access to some programs and I use for that this batch file: https://github.com/charlesdh/addfwrs It uses some batch file tricks that I don't understand to create colorful texts. But there is some problem with this method when in current directory exist file ...