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

PuTTY (32-bit)

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PuTTY 0.71

  -  2.89 MB  -  Open Source
Free Download

Security Status

  • Latest Version

    PuTTY 0.81 (32-bit)

  • Operating System

    Windows XP / Vista / Windows 7 / Windows 8 / Windows 10

  • User Rating

    Click to vote

  • Author / Product

    Simon Tatham / External Link

  • Filename

    putty-0.71-installer.msi

  • MD5 Checksum

    e55d57d188a1ea48ff21a4453ba2a4e0

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 0.71.


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.


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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 0.71

  • PuTTY 0.71 Screenshots

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    PuTTY 0.71 Screenshot 1
  • PuTTY 0.71 Screenshot 2
  • PuTTY 0.71 Screenshot 3
  • PuTTY 0.71 Screenshot 4
  • PuTTY 0.71 Screenshot 5

What's new in this version:

Security fixes found by an EU-funded bug bounty programme:
- a remotely triggerable memory overwrite in RSA key exchange, which can occur before host key verification
- potential recycling of random numbers used in cryptography
- on Windows, hijacking by a malicious help file in the same directory as the executable
- on Unix, remotely triggerable buffer overflow in any kind of server-to-client forwarding
- multiple denial-of-service attacks that can be triggered by writing to the terminal
- Other security enhancements: major rewrite of the crypto code to remove cache and timing side channels
- We now provide pre-built binaries for Windows on Arm
- Hardware-accelerated versions of the most common cryptographic primitives: AES, SHA-256, SHA-1
- GTK PuTTY now supports non-X11 displays (e.g. Wayland) and high-DPI configurations
- Type-ahead now works as soon as a PuTTY window is opened: keystrokes typed before authentication has finished will be buffered instead of being dropped
- Support for GSSAPI key exchange: an alternative to the older GSSAPI authentication system which can keep your forwarded Kerberos credentials updated during a long session
- More choices of user interface for clipboard handling
- New terminal features: support the REP escape sequence (fixing an ncurses screen redraw failure), true colour, and SGR 2 dim text
- Pressing Ctrl+Shift+PgUp or Ctrl+Shift+PgDn now takes you straight to the top or bottom of the terminal scrollback

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