Microsoft KB Archive/177631

= Comdlg32 Fails to Display Drives Mapped by SUBST Command in 16-bit Open Common Dialog Box =

Article ID: 177631

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0, Terminal Server Edition
 * Microsoft Windows NT Workstation 4.0 Developer Edition
 * Microsoft Windows NT Server 4.0 Standard Edition

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This article was previously published under Q177631





SYMPTOMS
Drive letters mapped to other network drives by the SUBST command may not show up in the Drives box of a 16-bit Open common dialog box. This happens for all 16-bit programs that use GetOpenFileName to display the File Open common dialog box.



CAUSE
Internally, there are two threads working together to display the Drives box; the lack of synchronization between those two threads causes the symptom described above.



RESOLUTION
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

152734 How to Obtain the Latest Windows NT 4.0 Service Pack



STATUS
Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.

Keywords: kbhotfixserver kbqfe kbbug kbfix kbnetwork KB177631

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