Windows Server still dogged by 'blue screen' bug

Microsoft has taken the unusual step of releasing an unscheduled fix for a problem that caused some PC's upgraded to Service Pack 2 (SP2) to crash in dramatic "blue screen" fashion.

The problem, which is said to affect all SP2-patched versions of Windows Server 2003, Windows XP Home/Professional, and Windows XP Tablet PC Edition 2005, surfaced a couple of months ago when users started reporting crashes accompanied with the stark message , "Stop 0x05 (INVALID_PROCESS_ATTACH_ATTEMPT)".

Windows XP users will have had the bug quietly fixed in recent days as part of Microsoft's automatic updates, though users who have disabled this function will still need to download new software. Windows Server 2003 users will have to wait until an unspecified point in the future, however. "There is no hotfix or update currently available to resolve this problem in Windows Server 2003,"said a statement on the website.

Microsoft has been less than forthcoming about the precise origins of the problem, but it appear to relate to the Http.sys system file clashing with TDI drivers loaded by unnamed third-party firewall programs. Although not a straight security issue as such, the problem would appear to reside in that element of the software.

It is not clear why some users might encounter the problem and others would not, as the blue screen crashes have not affected everyone. One possibility is that the issue affects only users of certain firewall programs but that Microsoft is not sure that patching only this would be sufficient.

The full list of Windows software affected by the issue is available on Microsoft's website. The Windows XP fix can be downloaded at

Join the newsletter!


Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

John E. Dunn
Show Comments

Most Popular Reviews

Latest Articles


PCW Evaluation Team

Tom Pope

Dynabook Portégé X30L-G

Ultimately this laptop has achieved everything I would hope for in a laptop for work, while fitting that into a form factor and weight that is remarkable.

Tom Sellers


This smart laptop was enjoyable to use and great to work on – creating content was super simple.

Lolita Wang


It really doesn’t get more “gaming laptop” than this.

Jack Jeffries


As the Maserati or BMW of laptops, it would fit perfectly in the hands of a professional needing firepower under the hood, sophistication and class on the surface, and gaming prowess (sports mode if you will) in between.

Taylor Carr


The MSI PS63 is an amazing laptop and I would definitely consider buying one in the future.

Christopher Low

Brother RJ-4230B

This small mobile printer is exactly what I need for invoicing and other jobs such as sending fellow tradesman details or step-by-step instructions that I can easily print off from my phone or the Web.

Featured Content

Product Launch Showcase

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?