Persisting env vars in cmd windows

I've got a .bat file that sets a number of symbols (environment vars)
that are useful in a number of other command windows associated with
one of several projects. Right now, I operate by
1 opening a command window
2 draging the name of the symbol-setting bat file into the new cmd
window and pressing Enter
3 draging the name of one of my utility bat files in the cmd window and
pressing Enter
4 proceeding manually entering other commands as needed.

I'd like to eliminate step 2 by invoking the symbol-setter at the
beginning of every other utility file. I tried this by using "cmd /c
symbol-setter.bat" to no avail. I believe that fails because the "cmd
/c" command starts a new session in which to set local env. vars and
then ends, never communicating with the invoking session.

The best solution I can conceive of is to manually write a .reg file
appropriate to each project in which I want persistant env. vars, thus
only needing to invoke that once at the inception of a project, maybe
with another one to delete all such entries should the project
ultimately be destroyed.

Any comments?

Regards,
Richard

.

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