Error 33: DOSRead and DOSWrite APIs from OS/2 Application

 Last reviewed: February 24, 1995
Article ID: Q124484
The information in this article applies to:
  • Microsoft Windows NT Workstation version 3.5
  • Microsoft Windows NT Server version 3.5

SYMPTOMS

When you call a DOSRead or DOSWrite API on locked ranges from an OS/2-based application under Windows NT version 3.5, an error 33 appears.

CAUSE

The OS/2 subsystem does not resolve the DOSRead and DOSWrite APIs correctly.

STATUS

Microsoft has confirmed this to be a problem in Windows NT Workstation and Windows NT Server version 3.5. This problem has been corrected in the latest U.S. Service Pack for Windows NT version 3.5. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces): 

   S E R V P A C K

KBCategory: kbother kbbug3.50 kbfix3.50.sp2
KBSubcategory: ntos2ap
Additional reference words: prodnt 3.50 OS2 OS2SRV

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Last reviewed: February 24, 1995
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