Mailpuccino under OS/2 It is assumed that you are familiar with Java and editing your config.sys file. If not, we are not responsible for any problems! Proceed at your own risk. Please do not contact the author of Mailpuccino about OS/2 problems. He does not own an OS/2 system. These instructions have been supplied anonymously. It's really quite straightforward to get Mailpuccino to run with OS/2. Basically, all it requires is the latest version of Java (1.1.7A) and Swing. The rest of the setup is in the CLASSPATH. To check on your version of java, type: java -fullversion and you should see something like: JAVA.EXE full version "JDK 1.1.7A IBM build o117-19990218 (JIT enabled: javax)" If the JDK precedes 1.1.7A, then it might not work. Go to the IBM Software Choice Page, http://www.software.ibm.com/os/warp/swchoice/, and follow the directions for downloading the latest version of Java. You will need the Feature Install package as well. Once you have Java 1.1.7A installed, you need Swing. This can be found at http://java.sun.com/products/jfc/ where you need to follow the directions on how to download Swing1.1.1-beta1. Download the zip file. >From the zip file, extract all the "jar" files, e.g., unzip swing111-beta1.zip *.jar and all your "jar" files will be put in the current directory (or a subdirectory, depending which unzip you use). Now you are all set. Update your CLASSPATH (in config.sys) so that it includes, at least: CLASSPATH=.\.;C:\JAVA11\LIB\CLASSES.ZIP;D:\SWING111\SWING.JAR;D:\SWING111\MOTIF.JAR; D:\SWING111\MULTI.JAR;D:\SWING111\MAC.JAR;D:\MAILPUCCINO\MAILPUCCINO.JAR; This assumes Java11 is on C: and the swing jars are in D:\SWING111, and Mailpuccino is in D:\MAILPUCCINO. Reboot your system, and execute: java Mailpuccino That's it. Mailpuccino should be running.