Microsoft KB Archive/160667

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PRB: Miniport Driver Fails Using Certain ScsiPort APIs

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Q160667

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The information in this article applies to:


 * Microsoft Windows 95

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SYMPTOMS
When you attempt to write a program or device driver that calls the following APIs, you may encounter the following errors:

ScsiPortReadRegisterUshort

ScsiPortReadRegisterULong

Specifically, miniport drivers written to use these APIs may fail to load.

CAUSE
These APIs are documented as being exported by SCSIPORT.PDR. However, due to a problem in SCSIPORT.PDR, these APIs are not correctly exported.

RESOLUTION
This issue is resolved by the following updated file for Windows 95, and later versions of this file:

  SCSIPORT.PDR  version 4.00.951  dated 10/26/95  23,165 bytes

STATUS
Microsoft has confirmed this to be a problem in Microsoft Windows 95. An update to address this problem is now available, but is not fully regression tested and should be applied only to computers experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft does not recommend implementing this update at this time. Contact Microsoft Technical Support for additional information about the availability of this update.

This issue is resolved in Microsoft Windows 98.

MORE INFORMATION
For additional information about issues resolved by updates to this component, please see the following article in the Microsoft Knowledge Base:

"Q155729 SCSI Devices May Not Be Enumerated Correctly"

For additional information about Windows 95 updates, please see the following article in the Microsoft Knowledge Base:

"Q161020 Implementing Windows 95 Updates" Additional query words: 1.00 Windows

Keywords : kbhw win95

Issue type : kbprb

Technology : kbWin95search kbWin95