Run a batch file in a new window from batch?

To simply do it is just

start cmd /c "exampleexample.bat"

This could also work with spaces;

start cmd /c "example example.bat"

And directories.

start cmd /c "C:\NAME\Example\Hi there\example example.bat"

I created my universal batch with this and this works flawlessly.

start abc.bat works for me. What is the problem in your case? You could also try start cmd /c abc.bat.

Is this what your after?

start "New Window" cmd /c test.cmd

It's a little bit strange that start abc.bat doesn't work but I assume this is because you are running this in the middle of another batch. You probably need call:

22:22:38.85 c:\help call
Calls one batch program from another.

CALL [drive:][path]filename [batch-parameters]

Giving you start call abc.bat or call start abc.bat depending on what the exact problem is.