Steps to install and run lpsolve on a Windows machine using the command line (cmd)

1. Download lpsolve for 64-bit Windows.


(For 32-bit Windows: Download lpsolve for 32-bit Windows.

I'll assume you download things to your Downloads folder.

2. Go to your Downloads folder.

You should see a file with a name like

lp_solve_5.5.2.11_exe_win64

This is a compressed (zipped) file containing lpsolve.

Double-click on this file to uncompress this file into the Downloads folder
3. Click Start, type cmd and hit enter to open a command line window.
4. In the command line window, change the directory to the Downloads using the following commands:

   cd Downloads
   cd lp_solve_5.5.2.11_exe_win64
   

5. Now you are in the directory with the executable lpsolve: if you list the files in the directory with the dir command, you will see the file lp_solve.exe here.
6. You will need a text file containing an LP to try out lpsolve.
   
   Download this example lp file, test.lp, and put it in the same directory as lp_solve.
7. On the command line, enter the command

   lp_solve test.lp
   

   and lpsolve will run and produce this output:

   Value of objective function: 4.61764706
   
   Actual values of the variables:
   x                         3.58824
   y                         1.02941
   

   If you see this output, congratulations! You have successfully installed and run lpsolve.
8. You can move the file lp_solve.exe to any directory you like. Note that it needs to be in the same folder as your LP file in order for the command

   lp_solve myfile.lp

   to work.