[plt-scheme] How should PLTCOLLECTS work?

Grant Rettke wrote:
> The doc says that:
>
> "If the PLTCOLLECTS environment variable is defined, it is combined
> with the default list using path-list-string->path-list."
>
> Setting it to "C:\collects" on Windows XP with PLt 4.1.4 results in
> this message when DrScheme is started:
>
> lib: standard-module-name-resolver: collection not found: "drscheme"
> in any of: (#<path:C:\collects>) in: (lib "drscheme/drscheme.ss")
>
> [Exited]
>
> DrScheme does not start.
>
> What did I do wrong?
>   
Probably prefix a `;'. At least in unix you would need something like
PLTCOLLECTS=:foo

Where the : delimits an empty path from foo.
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