Nessus Offline Activation License Already In Use Full [new] Site

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This page contains download links for PuTTY release 0.81.

0.81, released on 2024-04-15, is not the latest release. See the Latest Release page for the most up-to-date release (currently 0.83).

Past releases of PuTTY are versions we thought were reasonably likely to work well, at the time they were released. However, later releases will almost always have fixed bugs and/or added new features. If you have a problem with this release, please try the latest release, to see if the problem has already been fixed.

Package files

You probably want one of these. They include versions of all the PuTTY utilities (except the new and slightly experimental Windows pterm).

(You probably want the 64-bit x86 version. The 32-bit version is only for backward compatibility with very old PCs / versions of Windows.) nessus offline activation license already in use full

MSI (‘Windows Installer’)
64-bit x86: putty-64bit-0.81-installer.msi (signature)
64-bit Arm: putty-arm64-0.81-installer.msi (signature)
32-bit x86: putty-0.81-installer.msi (signature)
Unix source archive
.tar.gz: putty-0.81.tar.gz (signature)

Alternative binary files

sudo /opt/nessus/sbin/nessuscli fetch --challenge

C:\Program Files\Tenable\Nessus\nessuscli.exe fetch --challenge Copy the resulting alphanumeric string. On an Online Machine: Go to the Nessus Offline Registration Page . Enter your Challenge Code and your Activation Code . Click Submit . You will be provided with:

The submitted license file is either invalid, already in use on another scanner, or the activation limit has been reached.

Documentation

Browse the documentation on the web
HTML: Contents page
Downloadable documentation
Zipped HTML: puttydoc.zip
Plain text: puttydoc.txt
Windows HTML Help: putty.chm

Source code

Unix source archive
.tar.gz: putty-0.81.tar.gz (signature)
Windows source archive
.zip: putty-src.zip (signature)
git repository
Clone: https://git.tartarus.org/simon/putty.git
gitweb: main | 0.81 release tag

Downloads for 32-bit Windows on Arm

Nessus Offline Activation License Already In Use Full [new] Site

sudo /opt/nessus/sbin/nessuscli fetch --challenge

C:\Program Files\Tenable\Nessus\nessuscli.exe fetch --challenge Copy the resulting alphanumeric string. On an Online Machine: Go to the Nessus Offline Registration Page . Enter your Challenge Code and your Activation Code . Click Submit . You will be provided with:

The submitted license file is either invalid, already in use on another scanner, or the activation limit has been reached.

Checksum files

Cryptographic checksums for all the above files
MD5: md5sums (signature)
SHA-1: sha1sums (signature)
SHA-256: sha256sums (signature)
SHA-512: sha512sums (signature)

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(last modified on Sun Jan 11 00:43:18 2026)