use strict; 
use warnings;
use Win32::API;

my $FCWInitObject = Win32::API->Import(
'D:\ENV\USBaccess.dll', 'int FCWInitObject()',
); 
die "Error: ".( Win32::FormatMessage( Win32::GetLastError() ) ) if !$FCWInitObject;

my $FCWOpenCleware = Win32::API->Import(
'D:\ENV\USBaccess.dll', 'int FCWOpenCleware(int a)',
); 
die "Error: ".( Win32::FormatMessage( Win32::GetLastError() ) ) if !$FCWOpenCleware;

my $pointer = $FCWInitObject->Call();
print "Pointer $pointer\n";

my $success = $FCWOpenCleware->Call( $pointer );
print "Success $success\n";


##</code><code>##

Pointer 8350080
Success 0