Your surmise may be correct, but as the profession tells Med students, "don't go hunting for zebras in Kansas." You have several other possibilities to explore, in the responses above... and several bits of info you haven't given us. They would probably help us to help you.

Whatever, Win7, AS 5.16, & CLI gives me this: 

C:>perl -E "for (@ARGV) { say $_;}" abc def 123 "PM Question [id://106
+3372]"
abc
def
123
PM Question [id://1063372]

[download]

In reply to Re: Win7 doesn't fill @ARGV by ww
in thread Win7 doesn't fill @ARGV by hsfrey

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