When you are using Windows XP, the following error message may be displayed: The STOP screen lists Aspi32.sys as the source of the STOP error.

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This behavior can occur if an older version of the Advanced SCSI Programming Interface (ASPI) layer is installed on your computer. By default, Windows XP does not include ASPI support.

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To resolve this behavior, obtain and install ASPI version 4.57 or later. For information about how to do so, visit the following Adaptec Web site:

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

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ASPI extends the capabilities and number of devices that the operating system supports. You can determine what version of ASPI you have by viewing the Version tab in the Properties dialog box of the Aspi.sys or Aspi32.sys file. These files are typically located in the Winnt\System32\Drivers folder.

For additional information, click the article number below to view the article in the Microsoft Knowledge Base: The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

For information about how to contact Adaptec, Inc., click the appropriate article number in the following list to view the article in the Microsoft Knowledge Base:

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