-------------------
File:  INSTRUCT.TXT
-------------------

May, 1999
-------------------------------------------------
MODPATH Version 3.00 (V3, Release 2, 5-99)
MODPATH-PLOT Version 3.00 (V3, Release 2, 5-99)
-------------------------------------------------

       Installation instructions for MODPATH and MODPATH-PLOT

1. If it does not already exist, create a directory named:

      C:\WRDAPP

   We strongly recommend that you use directory C:\WRDAPP as the root 
   directory for installing the MODPATH files. However, if you choose to 
   select another directory, substitute that directory name for
   C:\WRDAPP in the instructions that follow. Also, if you use a name 
   other than C:\WRDAPP, you must set a system environment variable 
   named WRDAPP equal to the full pathname of the directory. For DOS, 
   Windows 3.x, or Windows-95, do that by editing the AUTOEXEC.BAT file. 
   As an example, if you install the files under a directory named
   "C:\MyModels", you would add the following line to your AUTOEXEC.BAT 
   file:

      set WRDAPP=C:\MyModels
 
   IMPORTANT: 
   1. The directory name you select must conform to the older DOS 8.3 character
   convension. MODPATH and MODPATH-PLOT do not support long file or directory 
   names.

   2. For Windows NT 4.0, create an environment variable by
   going to the Windows Control Panel and double clicking on "System." 
   Select the "Environment" tab and create the WRDAPP variable. You must 
   have system administrator privaleges to do this. Follow a similar 
   procedure for Windows NT 3.51.

   If you use the default directory name (C:\WRDAPP) it is not necessary 
   to set the WRDAPP environment variable.

2. Change to directory C:\WRDAPP so that it is your current working
   directory.

3. Copy the files LOADMP32.BAT and MP3R2ZIP.EXE to directory
   C:\WRDAPP on your hard drive.

4. Make sure directory C:\WRDAPP is your current working 
   directory. At the DOS prompt, type LOADMP32.BAT to install the 
   MODPATH and MODPATH-PLOT files. The installation procedure will 
   create the following directories:

     C:\WRDAPP\MPATH.3_2
     C:\WRDAPP\MPATH.3_2\DEMO
     C:\WRDAPP\MPATH.3_2\DOC
     C:\WRDAPP\MPATH.3_2\MFOUTPUT
     C:\WRDAPP\MPATH.3_2\SETUP
     C:\WRDAPP\MPATH.3_2\SOURCE
     C:\WRDAPP\RUN

   The installation procedure will work properly even if these
   directories already exist. In cases where one or more of 
   these directories already exist and contain files from a previous 
   installation, the installation program will ask you whether files 
   with duplicate names should be overwriten. Answer yes for each case 
   to assure proper installation. Once the installation is complete, 
   the files MP3R2ZIP.EXE, LOADMP32.BAT, and INSTRUCT.TXT can be 
   deleted from your hard drive, if desired.

5. The batch files used to run MODPATH and MODPATH-PLOT are located in 
   directory C:\WRDAPP\RUN. In order to run the programs from any
   working directory without typing the full pathname, you must add the
   directory C:\WRDAPP\RUN to your system search path. For Windows 3.x 
   and Windows 95, do this by editing AUTOEXEC.BAT. For Windows NT, use 
   the Windows Control Panel to edit the path variable. Restart the 
   computer after you change the search path. 

   You now should be able to run MODPATH and MODPATH-PLOT from any
   directory by typing the commands: MPATH3 and MPLOT3. To run the demo 
   problem, change to directory C:\WRDAPP\MPATH.3_2\DEMO and run as shown 
   in the MODPATH documentation report (USGS Open-File Report 94-464). To 
   test the installation, run MODPATH for the first sample problem in the
   DEMO directory by typing the following command:

     MPATH3 PATH-S1.RSP

   To plot the results of that run, type the command:

     MPLOT3 PLOT-S1.RSP

   You should see a full-screen plot of the output. When you are done
   looking at the plot, press Enter to quit MODPATH-PLOT. After you
   exit MODPATH-PLOT the DOS window will remain in full-screen mode. 
   Press "Alt + Enter" to return to a regular DOS window.

6. Check the readme and history files in directory C:\WRDAPP\MPATH.3_2 for
   additional instructions.