Users interested in Puttygen 64 bit generally download:
Creates very secure keys used to connect to the SSH2 protocols from the remote machines. Supports generating SSH-1(RSA), SSH-2 RSA and SSH-2 DSA keys for both public and private area. The randomization engine will create uncrackable keys so you connect securely to the Linux-based machines.
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Xming- Portable PuTTY- A portable version of the popular telnet and ssh client.
32-bit/x86 and 64-bit/x64...Pageant, and PuTTYgen. Xming- Portable