Adding a directory to the system path variable through registry

Question

I am trying to add a directory to the PATH variable in windows. This is what I am entering the command line. (Or a batch file)

@echo off
set value=%path%;%ProgramFiles%\AtomScript\
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Sessions Manager\Environment" /v Path /t REG_EXPAND_SZ /d %value% /f

And it comes up with this message

ERROR: Invalid syntax.
Type "REG ADD /?" for usage.

What am I doing wrong?

Thomas Dickey · Accepted Answer · 2016-02-07 00:33:05Z

4

You probably have to quote %value% (with double-quotes) because its expansion has embedded blanks for C:\Program Files, etc.

That would be

reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Sessions Manager\Environment" /v Path /t REG_EXPAND_SZ /d "%value%" /f

You can see what the actual expansions are by turning echo on in your script:

@echo on

answered Feb 7, 2016 at 0:33

Thomas Dickey

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3 Comments

eel ghEEz Over a year ago

It spells Session Manager (singular Session) in my Window 2016 Data Center.

Thomas Dickey Over a year ago

agreed, but that wouldn't answer OP's question about a syntax error.

Poikilos Over a year ago

It is Session Manager (singular Session) in Windows 10.

Andy Smith · Accepted Answer · 2018-06-24 08:41:08Z

0

Maybe you solved it already, but as far as I can see you also might have a misspelling in "...\Sessions Manager...". At least on my system it's "Session" without the extra s.

answered Jun 24, 2018 at 8:41

Andy Smith

211 bronze badge

1 Comment

rst-2cv Over a year ago

The length and non-specificity of your answer indicates that it should be a comment instead.

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