A great explaination of why you probably can’t use 4GB of RAM on your PC, even if Vista SP1 says you are. Keep reading →

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On a Windows Vista-based computer, when you run an application that uses the Refresh method of the IWbemRefresher interface, the application may result in a memory leak.

After the application runs for several days, the computer may become unresponsive. In this case, you have to restart the computer.

Additionally, if you use system performance monitor tool (perfmon.exe) to monitor the Private Bytes counter of the application, you may notice that the private bytes increase quickly.

Consider the following scenario:

• You have a computer that is running Windows XP or Windows Server 2003.
• You run a WebBrowser control application for a long time.

In this scenario, you may notice that system performance drops significantly. Additionally, if you use a performance monitor tool to monitor the system’s performance, you find evidence of a memory leak in the Msctf.dll component.

This issue occurs if the following conditions are true:

• Under Regional and Language Options in Control Panel, you click to clear the Turn off advanced text services check box.
• The value of the LoadIMM registry entry is set to 1 in hexadecimal format.
  Note: This registry entry is located under the following subkey:

  HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\IMM

You may also encounter this problem on a computer that is running Windows Vista.

After you open many application windows in Windows Vista, you may be unable to open any additional windows. Sometimes, a window may open. However, it will not contain the expected components. Additionally, you may receive an error message that resembles the following:

Out of Memory

• Windows Vista SP1 Guides for IT Professionals
  One of the SP1 changes is that Vista will report how much memory is INSTALLED, not how much is AVAILABLE. Is this a cheap ploy to make Vista look better, make it look like it can really take advantage of the RAM in your machine?
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• The Twelve Bribes of Vista
  The classic ‘Twelve Days of Christmas’ song done around bribes by Steve Ballmer, apparently to get you to buy Vista.
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One of the SP1 changes is that Vista will report how much memory is INSTALLED, not how much is AVAILABLE. Is this a cheap ploy to make Vista look better, make it look like it can really take advantage of the RAM in your machine? Keep reading →

On a multiprocessor computer that is running Windows Vista, the Rasdial API may free the same memory two times. When this problem occurs, the dial-up application stops responding (hangs).

When you use an application to transfer media from a computer that is running Windows Vista or Windows XP to a portable device, the memory for the application increases for each file that you transfer. The memory increase may cause the application to stop responding (hang) or to crash. This problem occurs when you transfer audio, video, or pictures.

On a Windows Vista-based computer, assume that you have a graphics card installed that uses system memory to augment dedicated video memory. In this situation, the Windows Aero feature may be disabled when the operating system runs under certain conditions, such as in multi-monitor configurations.