Build is a stability and performance maintenance update rolling out this September. This release focuses on refining the user interface responsiveness and addressing critical connectivity bugs identified in the previous 14.2 branch.

📲 SEP 14.3 RU6 is out!

: SEP 14.3 RU6 could offer optimizations that result in lower system resource usage, ensuring minimal impact on endpoint performance.

: SEP 14.3 RU6 would likely address various security vulnerabilities present in earlier versions, enhancing the overall security posture.

Improved stability for server-side roles, particularly for high-availability clusters.

The SEP 14.3 RU6 update likely includes several key features and enhancements aimed at improving the product's performance, security, and manageability:

Click Here – for GRC's new DNS Benchmark v2 !!

Since 1988.

It Works.

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SpinRite 6.1 for Intel Processor PC's,
FAT, Linux, Novell, and ALL OTHER file systems!

SpinRite now brings its legendary data recovery and drive maintenance magic to the latest file systems, operating systems, and hard drives. It runs MUCH faster than ever before, can help maintain all of your drives in tip top shape, can warn of impending disaster, and wrestle data from dying and nearly dead drives . . . before it's too late.

SpinRite 6.1 is now available for immediate purchase and download. This industry-standard data recovery tool is operating system independent, so it can be applied by users of Windows XP, 2000, Linux, and all other Intel/AMD PC‑platform hard drives and file systems.

Learn more about SpinRite v6.1

Read a few SpinRite success stories from users

GRC's DNS Benchmark v2
What are the fastest and most reliable
DNS resolvers for use by YOUR network?

16 years after the release of GRC's original freeware DNS Benchmark (which has been downloaded Failed to execute CGI : Win32 Error Code = 2
times since then), GRC proudly announces the availability of version 2 of our DNS Benchmark after one full year of development.

The Internet has changed a great deal during the intervening 16 years. The DNS Benchmark has been completely updated to support IPv6, encrypted DoH (DNS over HTTPS) and DoT (DNS over TLS) protocols. It is far more accurate, tests many more DNS resolvers, and has many original new features.

See the DNS Benchmark page for more!

The DCOMbobulator

Failed to execute CGI : Win32 Error Code = 2
downloads.

DCOMbobulator allows any Windows user to easily verify the effectiveness of Microsoft's recent critical DCOM patch. Confirmed reports have demonstrated that the patch is not always effective in eliminating DCOM's remote exploit vulnerability. But more importantly, since DCOM is a virtually unused and unneeded facility, the DCOMbobulator allows any Windows user to easily disable DCOM for significantly greater security.

Shoot The Messenger

Failed to execute CGI : Win32 Error Code = 2
downloads.

Even before the latest DCOM/RPC vulnerability (see above), many Windows users were being annoyed by "pop-up spam" notices appearing on their desktops. This intrusion is also facilitated by an exploitation of port 135. Our free "Shoot The Messenger" utility furthers the security of Windows by quickly and easily shutting down the "Windows Messenger" server that should never have been running by default in the first place.

UnPlug n' Pray

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downloads

As originally urged by the FBI, and still urged by prominent security experts, our UnPnP utility easily disables the dangerous, and almost always unnecessary, Universal Plug and Play service. If you don't need it, turn it off. (For ALL versions of Windows.)

XPdite

Failed to execute CGI : Win32 Error Code = 2
downloads.

A Critical Security Vulnerability Exists in Windows XP. (Surprise) Actually, as we know, there are many, but we'll handle them one at a time. This particular vulnerability allows the files contained in any specified directory on your system to be deleted if you click on a specially formed URL. This URL could appear anywhere: sent in malicious eMail, in a chat room, in a newsgroup posting, on a malicious web page, or even executed when your computer merely visits a malicious web page. It is already being exploited on the Internet.

GRC "Perfect Passwords" Generator

Failed to execute CGI : Win32 Error Code = 2
uses

Our server generates maximum entropy, ultra high quality, guaranteed unique custom password material for your use when securing and keying your WEP, WPA, VPN, or other network systems.

ID Serve

Failed to execute CGI : Win32 Error Code = 2
downloads

Since not all Internet servers are equally secure, knowing which server software a web site is using can be important to your security. Ultimately, the security of your personal data is your responsibility. This free utility can help.

Wizmo

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downloads

Wizmo is a lightweight "Windows Gizmo" offering a wide array of handy Windows commands. With a single click it can power down monitors, trigger a screen saver, set audio volume, and much more. Wizmo also includes an intriguing highly customizable "Graviton" screen saver.

SpinRite 6.1	rated #1 since 1988
The most trusted and widely used utility ever written for mass storage data recovery and long-term maintenance. SpinRite is my masterpiece. If you don't already own or know about SpinRite, check out these pages. The future of your data could depend upon it. Here is an independent review of SpinRite 5.0, and here is Maximum PC's Feb. 2002 review.
ShieldsUP!	Failed to execute CGI : Win32 Error Code = 2 system tests
The Internet's quickest, most popular, reliable and trusted, free Internet security checkup and information service. And now in its Port Authority Edition, it's also the most powerful and complete. Check your system here, and begin learning about using the Internet safely.
LeakTest	Failed to execute CGI : Win32 Error Code = 2 downloads
Ensure that your PC's personal firewall can not be easily fooled by malicious "Trojan" programs or viruses. Thanks to this first version of LeakTest, most personal firewalls are now safe from such simple exploitation.

GRC.COM contains a great deal of content, to which my work continuously adds. Therefore, finding one's way around here can be a chore in itself. I maintain several comprehensive pages to help direct and acquaint visitors with this site's content, and to help them determine what's been updated or added since their last visit. You can be notified by eMail whenever these main pages (or any others) are changed. See this link for details.
My Projects Page	Failed to execute CGI : Win32 Error Code = 2 accesses per day
This page contains a chronological listing of the various projects I have completed, and those that are planned for the future. Most entries contain links to the section of this site where that work is described in detail. By browsing through what I have accomplished, both in the past and more recently, and where I am headed in the future, you can quickly develop a good feel for this entire web site.
Freeware Listing	Failed to execute CGI : Win32 Error Code = 2 accesses per day
Everybody likes free software, especially when it's useful, small, and of the highest quality. Our freeware page assembles everything in one place, sorted by current popularity, historical popularity, or age since last update. Each entry contains a link to that program's section of this site, so it's a great way to view this site from the perspective of our free utilities.
If you are seeking some specific work, or if you prefer to browse a list of completed material not already mentioned above, the following section contains a short description with a link to everything else here:

Purchasing SpinRite – Directions for immediately purchasing and downloading our commercial software.
SpinRite documentation – You can learn about SpinRite by downloading its PDF documentation before, during, or after purchasing.
Audio/video clips of my TV appearances – If a picture is worth a thousand words, a video clip must be worth a million. Are they worth the download? You decide.
The worm wars of 2001 – In the late summer of 2001, the Code Red and Nimda worms were a big concern. I spent some time analyzing their behavior.
The Earthlink custom browser tag – Earthlink's customized IE web browser tags every web server request with some strange looking information. What is it?
The "Patchwork" IIS server tester – In early March 2001, the FBI and SANS Institute asked me to create a quick patch verification tester and intrusion evidence scanner for Microsoft's buggy IIS web server.
File downloader spying – My analysis of Real Networks, Netscape, and NetZip's file downloading utilities revealed that all downloads were being tracked and reported.
OptOut: The original spyware remover – Big business may be using your Internet connection and computer to spy on you. I created the OptOut utility and web pages after discovering how prevalent this secret spying had become.
FIX-CIH – Every April, the nasty "Chernobyl" virus wakes up to destroy many systems. The first time this happened I wrote a free & complete recovery utility.
Sub-pixel font rendering with Free&Clear – Microsoft says they invented their "ClearType" technology, but I quickly and independently "invented" the same thing . . . as had others who came years before. It is very cool, but rather obvious.
ZIP and JAZ drive click of death – Iomega's drives sometimes fall victim to a malady known as the Click of Death. Sounds bad, is bad. Learn what you can do about it, and get my free "Trouble In Paradise" (TIP) early warning utility.

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Sep 14.3 Ru6 ✯ [ RECENT ]

📲 SEP 14.3 RU6 is out!

: SEP 14.3 RU6 could offer optimizations that result in lower system resource usage, ensuring minimal impact on endpoint performance. sep 14.3 ru6

: SEP 14.3 RU6 would likely address various security vulnerabilities present in earlier versions, enhancing the overall security posture. Build is a stability and performance maintenance update

Improved stability for server-side roles, particularly for high-availability clusters. sep 14.3 ru6

The SEP 14.3 RU6 update likely includes several key features and enhancements aimed at improving the product's performance, security, and manageability:

Last Edit: Dec 06, 2025 at 20:58 (152.79 days ago)

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