DOCUMENT:Q197156  10-AUG-2001  [winnt]
TITLE   :Cannot Add New Modem or View Existing Modem Properties
PRODUCT :Microsoft Windows NT
PROD/VER:winnt:4.0
OPER/SYS:
KEYWORDS:kbenv kbhw kbHardware

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The information in this article applies to:

 - Microsoft Windows NT Workstation version 4.0 
 - Microsoft Windows NT Server version 4.0 
 - Microsoft Windows NT Server, Enterprise Edition version 4.0 
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SYMPTOMS
========

When you double-click the Modems icon in Control Panel, the Install New Modem
wizard may not start, or the Modems Properties dialog box may not be displayed.

CAUSE
=====

This behavior can occur if the PnP ISA Enabler service is not started, or if
certain files in the Winnt\System32 folder are missing or damaged.

RESOLUTION
==========

To resolve this issue:

 - Verify that the PnP ISA Enabler service is installed. For information on how
   to do this, see the following Microsoft Knowledge Base article:

   Q156344 Plug and Play Devices Not Detected or Installed

 - Verify that the Plug and Play service is started. To do this:

   1. Click Start, point to Settings, click Control Panel, and then double-click
      Services.

   2. Highlight the Plug and Play service. If the Status does not indicate
      Started, and the Startup mode is not Automatic, click Startup, click
      Automatic, and then click OK. Click Start, and then click Close.

 - Verify that the following files are located in the Winnt\System32 folder:

   Shell32.dll
   Rpcrt4.dll
   Tapi32.dll
   Setupapi.dll
   Msvcrt.dll
   Lz32.dll
   Comdlg32.dll
   Version.dll
   Cfgmgr32.dll
   Mpr.dll
   Rpcltc1.dll

   If any of these files are missing, reapply the latest Windows NT 4.0 Service
   Pack. For information on obtaining the service pack, query on the following
   word in the Microsoft Knowledge Base:

   SERVPACK

Additional query words:

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Keywords          : kbenv kbhw kbHardware 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400 kbWinNTS400search kbWinNTS400
Version           : winnt:4.0
Hardware          : ALPHA x86
Issue type        : kbprb

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Copyright Microsoft Corporation 2001.