Raymond Chen

Raymond has been involved in the evolution of Windows for more than 30 years. In 2003, he began a Web site known as The Old New Thing which has grown in popularity far beyond his wildest imagination, a development which still gives him the heebie-jeebies. The Web site spawned a book, coincidentally also titled The Old New Thing (Addison Wesley 2007). He occasionally appears on the Windows Dev Docs Twitter account to tell stories which convey no useful information.

Post by this author

Why is the page size on ia64 8KB?

September 8th, 2004
It's a balance between performance and performance.

What about Steve?

September 7th, 2004
The Annals of Improbable Research highlighted a few days ago the pioneering work of researcher Eugenie C. Scott on The Morphology of Steve. The value of these results to the growing field of Steve Theory cannot be understated...

Converting a byte[] to a System.String

September 7th, 2004
For some reason, this question gets asked a lot. How do I convert a byte[] to a System.String? (Yes, this is a CLR question. Sorry.) You can use String System.Text.UnicodeEncoding.GetString() which takes a byte[] array and produces a string. Note that this is not the same as just blindly copying the bytes from the byte[] array into a ...

The shift key overrides NumLock

September 6th, 2004
Perhaps not as well-known today as it was in the days when the arrow keys and numeric keypad shared space is that the shift key overrides NumLock. If NumLock is on (as it usually is), then pressing a key on the numeric keypad while holding the shift key overrides NumLock and instead generates the arrow key (or other navigation key) printed ...

More dictionaries you didn’t realize you needed

September 6th, 2004
Apparently there are a lot of strange dictionaries out there. Otherwise-well-respected German dictionary publisher Langenscheidt announced that it is producing a German-Woman/Woman-German dictionary. (Psst, Toronto Star, it's "Also sprachen die Fräulein"... Third person plural, past tense of strong verb, ending is "en". You're welcome...

Even in computing, simultaneity is relative

September 3rd, 2004
Einstein discovered that simultaneity is relative. This is also true of computing. People will ask, "Is it okay to do X on one thread and Y on another thread simultaneously?" Here are some examples: You can answer this question knowing nothing about the internal behavior of those operations. All you need to know are some physics and...

Why does Windows keep your BIOS clock on local time?

September 2nd, 2004
Even though Windows NT uses UTC internally, the BIOS clock stays on local time. Why is that? There are a few reasons. One is a chain of backwards compatibility. In the early days, people often dual-booted between Windows NT and MS-DOS/Windows 3.1. MS-DOS and Windows 3.1 operate on local time, so Windows NT ...

How to find the Internet Explorer binary

September 1st, 2004
For some reason, some people go to enormous lengths to locate the Internet Explorer binary so they can launch it with some options. The way to do this is not to do it. If you just pass "IEXPLORE.EXE" to the ShellExecute function [link fixed 9:41am], it will go find Internet Explorer and run it. ShellExecute(NULL, "open", "iexplore.exe...

Reading a contract from the other side: Application publishers

August 31st, 2004
In an earlier article, I gave an example of reading a contract from the other side. Here's another example of how you can read a specification and play the role of the operating system. I chose this particular example because somebody wanted to do this and didn't realize that everything they needed was already documented; they just needed to...

Importance of alignment even on x86 machines, part 2

August 30th, 2004
The various Interlocked functions (InterlockedIncrement, and so on) require that the variable being updated be properly aligned, even on x86, a platform where the CPU silently fixes unaligned memory access invisibly. If you pass an unaligned pointer to one of the Interlocked functions, the operation will still succeed, but the result won't ...