Download and unzip it. FIXPATH.EXE is the program, and FIXPATH.TXT contains:

FIXPATH - (C) 2004 by Bill Stewart (                              BACKGROUND                              I'm a regular in the microsoft.public.win2000.cmdprompt.admin newsgroup, and                              the following type of question is one we see quite often:                              "Why doesn't my ping \[or ipconfig, or net, or whatever\] command work?"                              Some users have noticed that if they manually change to their system32                              directory, the commands start working again.                              Magic! No, not really, once you understand how the operating system searches                              for commands. A simplified overview is below:                                1. If the command includes a directory name, the command interpreter (usually                                   cmd.exe) checks if the specified executable exists in the specified                                   directory. If it exists there, the command interpreter runs the                                   executable; otherwise, it reports an error message.                                2. If the command does not include a directory name, the command interpreter                                   checks the current directory for a matching program. If the program is                                   found, the command interpreter runs it; otherwise, it skips to the next                                   step.                                3. The command interpreter searches each directory specified in the Path                                   environment variable in order, for a matching program. If it exists in any                                   directory in the path, the command interpreter runs it; otherwise, it                                   reports an error message.                              So, then, the first thing you should check is the Path environment variable.                              However, this is just slightly more complex than you might expect at first                              blush. When Windows is first installed, it configures a Path setting as                              follows:                                %SystemRoot%\system32;%SystemRoot%;%SystemRoot%\system32\Wbem                              This setting is stored in the Path value in the registry in the following                              registry key:                                HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment                              The setting must be of type REG_EXPAND_SZ, which tells Windows that the                              registry value contains environment variable values to be expanded. In other                              words, if you look at your Path setting in the Environment Variables dialog box                              (right-click My Computer, click Properties, etc. etc. etc.), you'll see the                              percent signs, but if you type the command "set path" at a command line, you'll                              see them expanded correctly.                              So then, there are two conditions that determine a "correct" Path setting:                                1.  It must be of type REG_EXPAND_SZ                                2.  It must contain the minimum required directories                              The most likely cause of problem #1, above, is an incompetently-written                              installation program that attempts to update the Path and gets it wrong. #2                              might be caused by an upgrade to Windows 2000/XP/whatever from some earlier                              version.                              This program, FIXPATH.EXE, attempts to fix these problems, if detected.                              It was written in Pascal and can be compiled with the Win32 version of the Free                              Pascal compiler (                              VERSION HISTORY                              See source code (FIXPATH.PP) for the version history.                              SYSTEM REQUIREMENTS                              Windows 2000 or later.                              RUNNING THE PROGRAM                              Open a command prompt window, and run FIXPATH.EXE.                              It will display some preliminary information, and ask if it should continue.                              If it successfully updates the Path value in the registry, you will need to                              reboot for the change to take effect.                              You can run the program without user interaction by specifying /Q on the                              command line; e.g. 'FIXPATH /Q'.                              COMMON MESSAGES                              "RegOpenKeyEx returned error 5."                                You don't have enough permissions to modify the registry. Error 5 means                                "access denied." For any message that returns an error number, you can use                                "net helpmsg x" (where x is the number) to see the text version of that error                                number.                              "Error! Path value not found in registry!"                                Just what it says. The Path value is missing. FIXPATH will attempt to create                                the value with the correct data type and contents.                              "Error! The registry value type is not REG_EXPAND_SZ!"                                The Path value is the wrong data type. FIXPATH will try to fix this.                              "Error! The minimum required directories were not found in the Path!"                                The Path value doesn't start with the correct directories. FIXPATH will                                try to fix this also.                              Let me know if you get any other error messages.                              Bill Stewart