Look at KB article 830473, where they mention a number close to what you mention:
Even though the Win32 limitation for environment variables is 32,767 characters, ...
While they seem in some places to mean this as a limit for _one_ variable, it does make me suspicious that somewhere this is a limit for the combination of variables. For instance, in one article for Win2K they explicitly say "The default environment size is 256 bytes, with a maximum possible size of 32 KB."

But I have to say I am ... amazed ... at your IMO excessive use of environment variables to pass values to your programs. I can only think of two explanations: a good idea gone bad through mindless repetition, or you must share this data with other applications that can _only_ use environment variables. If not the latter case then consider re-thinking your use of environment variables. As you can now see, you have ridden this beast into the ground.

In reply to Re: environment limitations by shenme
in thread environment limitations by joinersw

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