Showing results for Tips/Support - The Old New Thing

Jan 24, 2007
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The undeletable Outlook folder, episode 2

Raymond Chen
Raymond Chen

I had another undeletable Outlook folder, and all my tricks for cajoling Outlook into letting me delete it failed. I already deleted all the items in it, emptied it of offline items, deleted all the failures from my Sync Issues folder, but still I couldn't delete the folder. But I came up with a new trick. I moved the folder out of its normal lo...

Tips/Support
Dec 5, 2006
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How do I find all files with at least one space in their name?

Raymond Chen
Raymond Chen

You already know how to do this, you just don't realize it. How do you find files with an "x" in their name? That's right, you use . Now you just have to change that x to a space. And since spaces are command line delimiters, you need to quote the sequence so it gets treated as a single parameter rather than two "*" parameters: Stick in a ...

Tips/Support
Nov 23, 2006
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Placebo setting: QoS bandwidth reservation

Raymond Chen
Raymond Chen

A placebo setting that has been getting a lot of play in recent years is that of QoS bandwidth reservation. The setting in question sets a maximum amount of bandwidth that can be reserved for QoS. I guess one thing people forgot to notice is the word "maximum". It doesn't set the amount of reserved bandwidth, just the maximum. Changing the value...

Tips/Support
Nov 20, 2006
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Paradoxically, you should remove the smart card when logging on with a smart card

Raymond Chen
Raymond Chen

To connect to the Microsoft corporate network from home, employees need to use smartcard authentication. But, somewhat paradoxically, you do better if you remove the smart card. A colleague of mine tipped me off to this. To initiate the connection, you have to insert the smart card and provide the smart card password. Then the system connects to ...

Tips/Support
Nov 17, 2006
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The window manager moves the mouse; applications choose the cursor

Raymond Chen
Raymond Chen

You can sometimes narrow down the source of a problem just by looking at the screen and moving the mouse. When you move the mouse, the cursor on the screen moves to match. This work is done in the window manager in kernel mode. The mouse hardware notifies the window manager, "Hey, I moved left twenty units." The window manager takes this value, ac...

Tips/Support
Oct 30, 2006
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Why can't I get my program to use more than 50% of the CPU?

Raymond Chen
Raymond Chen

This is sort of the reverse of Why is my CPU usage hovering at 50%?, but the answer is the same. When I run a CPU-intensive task, the CPU percentage used by that process never goes above 50%, and the rest is reported as idle. Is there some setting that I set inadvertently which is preventing the program from using more than half of the CPU? My ...

Tips/Support
Oct 25, 2006
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Offline mode silently prevents you from streaming media content

Raymond Chen
Raymond Chen

Into Windows Media Player (version 9 if you're keeping score at home), I type the URL of an MP3 file (poor man's podcast) and get the error message "The download of the specified resource has failed." On this dialog there two buttons: Close and Web Help. Close closes the error dialog, of course. Web Help does nothing. Turns out the real prob...

Tips/Support
Oct 20, 2006
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How do I shut down a workstation via Remote Desktop?

Raymond Chen
Raymond Chen

When you are connected to a workstation via Remote Desktop, the "Turn Off Computer" option changes to "Disconnect". But what if you really want to turn off the computer, hibernate it, or put it on stand-by? Note: These tips work on Windows XP, but there is no guarantee that they will work in future versions of Windows. One way to do this is ...

Tips/Support
Sep 29, 2006
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Quotation marks around spaces aren't necessary in the PATH environment variable

Raymond Chen
Raymond Chen

The purpose of quotation marks is to allow a character that would normally be interpreted as a delimiter to be included as part of a file name. Most of the time, this delimiter is the space. The function uses a space to separate the program name from its arguments. Most programs separate their command line arguments with a space. But the environm...

Tips/Support
Aug 8, 2006
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A look inside WinInet's index.dat file and changes in IE7 and Vista

Raymond Chen
Raymond Chen

My frequent bicycling buddy Ari Pernick wrote a couple of articles over on the Windows Network Development blog on the topic of the file, which appears to have gotten a bit of attention lately. This past weekend, I joined Ari and another friend in a ride along the Upper Loop of the annual Tour De Peaks bicycle ride. I'd never done this ride b...

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