Did you check to see whether anything is being returned by OpenFileHandle()?

Try 

my $mem_handle = OpenFileMapping(
    $SECTION_ALL_ACCESS, 0, $C3_mem
) or die "OpenFileHandle failed with: $^E";

[download]

See $EXTENDED_OS_ERROR for the explanation of $^E.

Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"Think for yourself!" - Abigail

In reply to Re+: Win32 Shared Memory by BrowserUk
in thread Win32 Shared Memory by nornagon

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