I should have mentioned that I tried IO::Scalar. The following code causes a page fault in perl56.dll.

use IO::Scalar;

print "Trying ioscalar...\n";
my $io = ioscalar();
print "Finished with ioscalar.\n";
print $io;

print "Testing STDERR...\n";
print STDERR "(STDERR) can you hear me now?\n";

sub ioscalar {
  my $data;
  *oldfh = select STDERR; # save STDERR
  print "STDERR saved.\n";
  my $SH = new IO::Scalar \$data;
  print "\$SH created.\n";
  open(STDERR, '>', $SH) || die "Can't redirect STDERR to the IO::Scal
+ar, $!";
  print "STDERR redirected to \$SH\n";
  select(STDERR); $| = 1;
  print STDERR "ioscalar says 'hi'\n";
  close(STDERR);
  open(STDERR, ">&oldfh"); # restore STDERR
  select(STDOUT);
  return $data;
}

__DATA__
Trying ioscalar...
STDERR saved.
$SH created.
[download]

I am curious to see if the following works for you or not:

use strict;
use warnings;
use IO::Scalar;

my $str;
my $err = tie *STDERR, 'IO::Scalar', \$str;

print STDERR "captured\n";

undef $err;
untie *STDERR;

print STDERR "not captured\n";
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UPDATE:
whoops, this is exactly what shenme already said. My apologies.

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)