Microsoft KB Archive/321791

= BUG: IRTCClient::InvokeTuningWizard Requires Administrator Privileges The First Time =

Article ID: 321791

Article Last Modified on 10/30/2003

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APPLIES TO


 * Microsoft Win32 Application Programming Interface, when used with:
 * Microsoft Windows XP Professional

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This article was previously published under Q321791



SYMPTOMS
When not run from an administrator account, IRTCClient::InvokeTuningWizard does not display the video preview and video performance may suffer later.



CAUSE
The first time that InvokeTuningWizard is called, it needs to write some registry information that only an administrator can create. After this data is created, this function can be called from any account.



RESOLUTION
Execute the tuning wizard one time from an administrator account.



STATUS
Microsoft has confirmed that this is a bug in Win32 API.

This problem was corrected in Windows XP Service Pack 1.

Additional query words: RTC

Keywords: kbbug kbfix kbkernbase KB321791

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