微软在官网上发出通知，针对使用最新一代的Windows7用户，他们可能会遇到运行时VoIP（IP电话）时挂掉的问题。据微软公司说，音频播放和捕获类软件确实会在Win7系统下挂掉，这类软件主要以VoIP类软件为代表。

“在音频设备反应迟缓的情况下，Win7系统下的WaveOut API接口有时不能正确地处理音频样本”，微软解释说。 “

VoIP应用程序一旦在Windows 7挂起，目前唯一的解决办法就是重启这个应用程序，微软表示这是一个错误，并且，微软会尽快发布一个热修复补丁（HotFix）。

Windows 7的所有版本都可能受到此问题影响，微软没有说明何时会提供修补程序，但请大家关注Windows7之家，一旦有更新我们会立即通知大家。

软媒（www.ruanmei.com）特别提供英文原文如下：

VoIP Apps Can Hang on Windows 7
Microsoft is working on producing a resolve

Microsoft has informed users of the latest iteration of its Windows client that they might come across issues when running VoIP (Voice over Internet Protocol) applications on their computers. According to the Redmond company, audio playback and capture applications can hang when used in combination with Windows 7. The software giant revealed that applications performing audio playback and audio capture simultaneously were typically VoIP software. Windows 7 customers running VoIP solutions can often experience hangs, Microsoft stated.

“WaveOut API on Windows 7 sometimes fails to process audio samples correctly when response of your audio device is slow,” the company explained. “There is a problem on how WaveOut API handles audio playback requests and audio capture requests submitted by your application.”

While the software giant has confirmed the issue and even identified the source of the problem, an update is not yet available to resolve the issue. At the same time, Microsoft is most likely not to release an update, but to allow affected customers to resolve the problems by applying a hotfix, rather than serving a refresh to all Windows 7 users.

For the time being, Windows 7 customers that have recognized the symptoms described in this article and that are impacted by this specific problem can turn to a very simple workaround, albeit the solution is only temporary and will need to be repeated in the eventuality that the Windows 7 VoIP applications hangs again. “Once a hang occurs, the only resolution at this point is to restart the application,” the company stated. “This is a bug. Microsoft is planning to release a hot fix.”

All editions of Windows 7 can potentially be affected by this issue. The Redmond company did not indicate when a hotfix would be offered, but keep your eyes on Softpedia, and we’ll provide an update once it happens.

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