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
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
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.
- 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
- 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.
: 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
Be sure to reset the flag after you have completed installation. Use the
- Start Registry Editor (regedt32 not regedit)
- Navigate to the following registry key:
NOTE: The above registry key is one path; it has been wrapped for
- Add 0x400 to the Flags value. For example, if the existing flags
value is 0xc (the default), change it to 0x40c.
- Install Network Monitor.
- After installation, change the Flags value back to the original