how to access a variable in windows device drivers across modules

I have 2 .sys files. A variable defined in 1 .sys file needs to be accessed in another .sys file. I am looking at the simplest of the solution: something like importsymbol by name. Is it possible? In case so, how? Thanks.
GNVS SudhakarEngineerAsked:
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Amitabh SinghAWS Certified Solution Architect | L3 IT Specialist for CloudCommented:
hi
set the value in environment variable by set command (for more info type "set /?" in cmd)  then read that environment variable when need them via %variable%
GNVS SudhakarEngineerAuthor Commented:
These are load time drivers. So no shared environment.
GNVS SudhakarEngineerAuthor Commented:
found export driver concept. It is working.

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GNVS SudhakarEngineerAuthor Commented:
researched.
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