'Can one Windows environment variable refer to another windows environment variable?

I want to support two versions of a Windows app easily. It uses environment variables to configure it.

I'd like to set up a top level ENV, that can be changed to switch versions:

VERSION_ROOT = c:\tool_version_A

TOOL_BIN_FOLDER = $VERSION_ROOT\bin
TOOL_LIB_FOLDER = $VERSION_ROOT\lib

Then if I need to switch to tool version B, I just change the VERSION_ROOT environment variable: VERSION_ROOT = c:\tool_version_B and I'm done.

Any way to make this work in Windows?

windows environment-variables

Solution 1:^[1]

Durn it! No - When I put %TOOL_BIN_FOLDER% in the Windows 10 environment variable edit box it IMMEDIATELY expands it to the folder location, replacing the variable with the hard wired path #facepalm.

This didn't work: Trying to use the Windows batch file variable synth with the surrounding % signs:

TOOL_BIN_FOLDER = %VERSION_ROOT%\bin

More hints here: Limits on Windows environment variable nesting?

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Solution	Source
Solution 1	Gord Wait

'Can one Windows environment variable refer to another windows environment variable?

Solution 1:[1]

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Solution 1:^[1]