Plottools is provided as a zipped archive, plottool20setup.zip. These installation instructions are for Plottools 2.0 (64-bit compatible edition) , dated July 15, 2014: 1) Create a folder for the installation program, say c:\plottoolsetup 2) Unzip plottool20setup.zip into the directory you created in Step 1. 3) Click the Start button, click All Programs, click Accessories, then right-click Command Prompt. On the pop-up menu, click "Run as administrator". If you get a message box saying "Do you want to allow...", click Yes. 4) When the Administrator Command Prompt window opens, type the following at the prompt: regsvr32 c:\plottoolsetup\mfc40.dll (Replace c:\plottoolsetup with whatever folder you selected in Step 1.) Hit Enter. 5) Go to the folder created in Step 1. 6) Double-click on the "setup" (setup.exe) program. Answer any questions appropriately to allow Plottools to be installed. 7) Find the PLOTTOOL folder. In a 64-bit Windows version it will be in c:\Program Files (x86). Start Plottools by double-clicking PLOTTOOL (PLOTTOOL.exe). If you choose to, make a desktop shortcut for PLOTTOOL.exe. 8) Once installation is completed the folder created in Step 1 can be deleted, including its contents. Please report any issues and send questions to slk1000@aol.com. Stan