Hard to say if it will work on Win98, since that OS was never designed with multi-user access in mind.

An operating system does not have to be multiuser to need interlocks. flock() is for controlling simultaneous access which is possible with any multitasking operating system. Windows 95/98 are both (somewhat) capable of multitasking.

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print map { my ($m)=1<<hex($_)&11?' ':'';
$m.=substr('AHJPacehklnorstu',hex($_),1) }
split //,'2fde0abe76c36c914586c';
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