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Microsoft KB Archive/168523

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Knowledge Base

FIX: Report Fails When Printing Under Windows NT 4.0

Article ID: 168523

Article Last Modified on 10/16/2002


  • Microsoft Visual FoxPro 5.0 Standard Edition, when used with:
    • Microsoft Windows NT 4.0
  • Microsoft Visual FoxPro 5.0a, when used with:
    • Microsoft Windows NT 4.0

This article was previously published under Q168523


When printing some reports under Windows NT, Visual FoxPro causes a Dr. Watson error such as the following:

Exception: Access Violation (0xc0000005)

This may happen when printing a report multiple times in a loop.


Use the following code to ensure that the appropriate fields in the report file are null-terminated, as FoxPro expects. Run this code to process the reports in the current directory:

   *  Get list of report files in current directory.
   nNumReports = ADIR(aReports, "*.FRX")

   *  Loop through reports
   FOR nCurrentReport = 1 TO nNumReports
     USE (aReports[nCurrentReport,1]) EXCLUSIVE ALIAS FRXFILE

     * Add terminating null to printer information record.
     REPLACE ALL expr WITH expr + CHR(0) ;
        FOR objtype = 1 AND RIGHT(expr,1) != CHR(0)



Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This bug has been fixed in Visual Studio 97 Service Pack 2.

For more information on the Visual Studio 97 Service Pack 2, please see the following article in the Microsoft Knowledge Base:

170365 INFO: Visual Studio 97 Service Packs - What, Where, and Why

Keywords: kbbug kbfix kbprint kbvs97sp2fix KB168523