How to persistently set a variable in Windows 7 from a batch file?

Question

I am trying to set the PATH environment variable in windows 7 using a bat-file; however it does not seem to work.

I am using this windows command:

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Answer 1

If you want to do it in a batch file, use the reg command to change the path value in the registry at the HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment key.

Something like:

reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v Path /t REG_SZ /d "%path%;c:\newpath"

Check that the path in the %path% variable matches the system path.