A client program for the SSH, Telnet and Rlogin network protocols

PuTTY (32-bit)

Browse by Company

Adobe, Apowersoft, Ashampoo, Autodesk, Avast, Corel, Cyberlink, Google, iMyFone, iTop, Movavi, PassFab, Passper, Stardock, Tenorshare, Wargaming, Wondershare

PuTTY 0.56

  -  1.16 MB  -  Open Source
Free Download

Security Status

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of PuTTY 0.56.


For those interested in downloading the most recent release of PuTTY (32-bit) or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


We would love to hear from you

If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

Download PuTTY 0.56

  • PuTTY 0.56 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    PuTTY 0.56 Screenshot 1
  • PuTTY 0.56 Screenshot 2
  • PuTTY 0.56 Screenshot 3
  • PuTTY 0.56 Screenshot 4
  • PuTTY 0.56 Screenshot 5

What's new in this version:

- Security fix: a vulnerability discovered by iDEFENSE, potentially allowing arbitrary code execution on the client by a malicious SSH-2 server before host key verification, has been fixed. See vuln-ssh2-debug.
- Ability to restart a session within an inactive window, via a new menu option.
- Minimal support for not running a shell or command at all in SSH protocol 2 (equivalent to OpenSSH's "-N" option). PuTTY/Plink still provide a normal window for interaction, and have to be explicitly killed.
- Transparent support for CHAP cryptographic authentication in the SOCKS 5 proxy protocol. (Not in PuTTYtel.)
- More diagnostics in the Event Log, particularly of SSH port forwarding.
- Ability to request setting of environment variables in SSH (protocol 2 only). (However, we don't know of any servers that support this.)
- Ability to send POSIX signals in SSH (protocol 2 only) via the "Special Commands" menu. (Again, we don't know of any servers supporting this.)
- Bug fix: The PuTTY tools now more consistently support usernames containing "@" signs.
- Support for the Polish character set "Mazovia".
- When logging is enabled, the log file is flushed more frequently, so that its contents can be viewed before it is closed.
- More flexibility in SSH packet logging: known passwords and session data can be omitted from the log file. Passwords are omitted by default. (This option isn't perfect for removing sensitive details; you should still review log files before letting them out of your sight.)
- Unix-specific changes:
   + Ability to set environment variables in pterm.
   + PuTTY and pterm attempt to use a UTF-8 line character set by default if this is indicated by the locale; however, this can be overridden.

Top Downloads

More Popular Software »