How can Putty load my public key generated with OpenSSH

From: Ralph (rgreen_at_preferredstaff.net)
Date: 10/20/03 

Date: 20 Oct 2003 12:45:06 -0700

Howdy,
  I have the OpenSSH daemon running on a Linux box. I have Putty on a
Windows machine. I want them to talk securely. I can't figure out
how to make Putty use the public keys I generated with OpenSSH and
copied over from the Linux box. I see an option to convert a private
key file. I don't know why you would want to convert a private key,
but lots of people must need to convert a public key. I tried the
option to load a private key. In Putty, it just beeps. In Puttygen,
it says it is not a valid private key file. No kidding, it is a
public key file. There must be a way to do this or Putty would be
pretty useless for SSH. Could someone point me in the right
direction? (Please don't just say read the manual. I did that and it
did not help)
  I have tried the latest stable Putty and the Development version(Oct
10, 2003). I have been reading this newsgroup and googling for an
answer for a couple of days.
Thanks,
Ralph

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