envutil :       MsDos environment handling utilities
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appenv.zip      APPend to ENVironment
bigpath.zip     Make Dos path command almost twice as big
bset11.zip      Bset v1.10; big SET environment
cpath20.zip     Extend path in environment limit (req's DOS 3.30)
desetp12.zip    Sets path variables longer than 128 bytes
ee2.zip         Systems environment editor (EE) (good)
eed10.zip       Full screen easy to use Environment EDitor, J-S Yih.
env.zoo         Dos environment editor (edit path)
envset10.zip    Set an environment variable
envsize.zip     Set environment size
files33.arc     Open up to "FILES=" files (DOS 3.3)  (no docs)
files3x.arc     Open up to "FILES=" files (DOS 3.00 - 3.20)  (no docs)
printenv.zip    I wonder what this can do more than SET
push.zip        Push/pop the current environment varieables (w asm)
rbsetnv1.zip    Setenv & eval environment variables (w C)
setpgms.zip     Environment setting utilities (DOS 3.1 - 3.3)
xset211.zip     Enhanced set instruction v2.11; environment variables