Tag Archives | x64

.NET Applications on Windows x64 – Easy? Yes and No

When migrating to 64-bit Windows, traditional “unmanaged” applications can pose challenges. That is because unmanaged binaries contain hardware-dependent CPU instructions – and the view on the hardware differs between 32- and 64-bit mode. But .NET? It should be unaffected of a system’s bitness since “managed” binaries contain instructions in a so-called intermediate language that is […]

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x64 Divided by Two is NOT x32!

At the verge of the transition from 32-bit to 64-bit Windows it is interesting to observe how people interpret and misuse acronyms for the definition of “their” platform. Looking at the acronyms in use out there one might consider oneself back in the eighties, with dozens of different incompatible computer systems. Unfortunately it is more […]

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Hear Me Speak and Talk to Me

Do you like what you read in this blog but have questions I did not answer (yet)? Or do you prefer listening and talking to live human beings instead of sitting alone in front of your screen? Well, come hear me speak and tell me what you think! This summer I will be speaking at […]

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Where is the Hosts File on Windows x64?

[A German translation of this article is available at faq-o-matic.net.] The subtle differences between 32-bit and 64-bit Windows present so many intricacies and pitfalls that even Microsoft employees seem to have trouble getting it right. I just stumbled upon a KB article that describes how to reset the hosts file to its original state. The […]

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Itanium (IA-64), an Obituary

Itanium (IA-64), an Obituary

Back in the old days, when 64-bit computing was still a novel concept and RISC vs. CISC wars were still fought, HP and Intel joined forces to develop the next-generation CPU. It would be 64-bit only and it would have a new type of architecture called EPIC. That was in 1994. As the new partners […]

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Free Tool – List Registry Links (REG_LINK)

Recently I got into a very interesting discussion with my colleague Nicholas Dille on various aspects of Windows x64. One question he brought up was especially intriguing: Knowing about registry redirection, it is not astonishing to find that the 32-bit version of the registry key HKLM\Software\Classes (aka HKCR) gets to be HKLM\Software\Classes\Wow6432Node. But there is […]

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Windows x64 – All the Same Yet Very Different, Part 7: File System and Registry Redirection, Registry Reflection

This is the seventh part of a mini-series on Windows x64, focusing on behind the scene changes in the operating system. In the last article I explained that mixed 32-/64-bit processes are not allowed and how that rule affects both administrators and script-writers. In this context I mentioned the strangely named directory SysWOW64. Today I […]

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