Installing Microsoft Network Monitor on Terminal Server

Article ID: 187624 - View products that this article applies to.
This article was previously published under Q187624
IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the "Restoring the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help topic in Regedt32.exe.
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SUMMARY

The full version of Network Monitor does not install for single-user use, (for example, for an administrator working at the console). During installation you receive this message: 
   Only Windows 95 and Windows NT 3.51 and up are supported.
This problem can be resolved by setting an application compatibility flag.
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MORE INFORMATION

Typically, applications installed on Terminal Server are installed for multiuser use. This would require that the application be installed after you place the server in Install Mode (change user /install), or when you install the application through the Add/Remove Programs option in Control Panel. However, since you normally install Network Monitor for a single user, the administrator would install Network Monitor in Execute Mode (the default mode or choosing to install for a single user in Add/Remove Programs).

When the server is in Execute Mode, software requests for the location of the Windows directory are answered with the user's Windows directory (typically located under the user's profile), rather than with the systemroot directory. Since Network Monitor looks for the systemroot directory as part of its version-checking routine, when the server tells it that the administrator's Windows directory is the systemroot, Network Monitor assumes this can't be either Windows NT or Windows 95.

This is a common application problem and can be resolved in two ways for Network Monitor.
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RESOLUTION

  1. You can successfully install Network Monitor if you install it for all users. Access can then be restricted through NTFS permissions. When the server is in Install Mode, requests for the systemroot are answered with the real systemroot rather than the user's Windows directory.
  2. You can also successfully install Network Monitor for single-user use by adding a compatibility flag to the Terminal Server Registry for Network Monitor. In this case, add the application compatibility flag value of 0x400 to any existing flag value for the component that is looking for the systemroot. A value of 0x400 tells the system to report the real systemroot as the Windows directory.
The application that does version checking is called _MSTEST. This is a common Windows NT component, and is preconfigured in the registry with a compatibility flag. So, you need to locate this flag value and modify it.

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it. If you are running Windows NT, you should also update your Emergency Repair Disk (ERD).

Be sure to reset the flag after you have completed installation. Use the following steps:

  1. Start Registry Editor (regedt32 not regedit)
  2. Navigate to the following registry key: 
    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Terminal
   Server\Compatibility\Applications\_MSTEST
    NOTE: The above registry key is one path; it has been wrapped for readability.
  3. Add 0x400 to the Flags value. For example, if the existing flags value is 0xc (the default), change it to 0x40c.
  4. Install Network Monitor.
  5. After installation, change the Flags value back to the original value.
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Properties

Article ID: 187624 - Last Review: November 1, 2006 - Revision: 1.2
APPLIES TO
  • Microsoft Windows NT Server 4.0, Terminal Server Edition
Keywords: 
kbinfo KB187624
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