• To see which java version (if any) is installed, launch the command window and type "java -version".
  
• If your computer does not have Java, download it from Java.com and install it.
  
• Other than for the free software, right-click the downloaded .zip package and select "Extract All..." to extract the program folder. 
  
• The intact folder typically will be dragged to C:\Program Files or C:\Program Files (x86) but it will function wherever it is stored. 
  
• Launch the program by double-clicking the .cmd command file (Weasel.cmd or ACluE.cmd) or, for the free software, double-click the .jar file.
  
• Launch enhancements for advanced users and .cmd file editing advice are in the enclosed README.txt.  
• In newer Windows 10 systems, an attempt to launch Weasel.cmd may trigger the message: "Microsoft Defender SmartScreen prevented an unrecognized app from starting".  You may click "More info" and then you have the option to "Run anyway".

Unix varieties or other computers

• If your computer does not have Java, download it from Java.com and install it. 
  
• After extracting the program folder, the program can be launched by double-clicking the .jar archive however, other than for the free software, it is preferable to use a launch command that sets the initial memory heap allocation.  See the enclosed Weasel.sh or ACluE.sh shell file and README.txt for more information.  

Macintosh

• To see which java version (if any) is installed, launch the utility Terminal.app and type "java -version".
• If your mac does not have Java, download it from Java.com and install it.
  
• Other than for the free software, if the downloaded package is a .zip, double-click  to extract the program folder containing the .app application. For Weasel, packaged as .dmg, open and drag the folder to your location of choice.
  
• The intact folder may be placed in "Applications" but it will function wherever it is stored. 
• For computers running MacOS Sierra (10.12) or up to Big Sur (11.2), bring up a Terminal window and type (red section):

My-iMac: myAdminAccount$ sudo spctl --master-disable
Password: [enter your administrator password]


• In all MacOS systems, launch System Preferences, select Security & Privacy, unlock the controls and set "Allow apps downloaded from:" to "Anywhere". 




• Right click on the app (Weasel.app, ACluE.app or the free software .jar file), select "Open" and confirm the "Open" request.
  
• The program will launch and can be run from then on just by double-clicking.
  
• Return your Security & Privacy settings to their original state.
  
• If your computer is running MacOS Sierra (10.12) or later, bring up the Terminal window and restore the original system state by typing (red):

My-iMac: myAdminAccount$ sudo spctl --master-enable
Password: [enter your administrator password]


• Launch enhancements for advanced users are in the enclosed README.txt