Clicking and popping for USB audio interfaces under Windows XP. (Microsoft Messenger fix)

Patch Available for USB Isochronous Data Transfers Issues (Q307271)
—————————————-
The information in this article applies to:
* Microsoft Windows XP Home Edition
* Microsoft Windows XP Professional
—————————————————-

SYMPTOMS

You may experience one or more of the following problems in Windows XP:

* When you are listening to audio over Universal Serial Bus (USB) speakers, you may hear a pop. This may occur from every few seconds to every few minutes.
* When you are connected to the Internet via an USB modem, you may encounter data transfer errors or even loose connection during heavy transfers.

CAUSE

This issue occurs because frames are being dropped on the USB bus during isochronous data transfers. This may affect functionality of any USB device using this mode of data transfer.

RESOLUTION

Microsoft has released an update to address this problem. You can apply a patch either during or after Windows XP Setup.

Apply Patch After Windows XP Setup
If you did not download the updated Setup files during the Setup procedure, you can obtain the patch from the Microsoft Download Center.
The following file is available for download from the Microsoft Download Center:

Download Q316397_wxp_sp1_x86_enu.exe now
http://www.microsoft.com/Downloads/Release.asp?ReleaseID=36315

Release Date: February 25, 2002
For additional information about how to download Microsoft Support files, click the article number below to view the article in the Microsoft Knowledge Base:

Q119591 How to Obtain Microsoft Support Files from Online Services
Microsoft used the most current virus detection software available on the date of posting to scan this file for viruses. After it is posted, the file is housed on secure servers that prevent any unauthorized changes to the file.

NOTE: The original version of this patch has been superseded by the Windows Messenger Update for Audio/Video and Voice.Net. For additional information about the new patch, click the article number below to view the article in the Microsoft Knowledge Base:

Q316397 Windows XP Real-Time Communication Client Support for Network Address Translation

Knowledge Base