If you do not have the latest JVM installed in your computer you may download PAT with the JVM. This option includes PAT and JVM in one download file (one installer) but the installer will install a pivate JVM for use by PAT only. The size of the file is about 12.2 MB

Another option, if you do not have the latest JVM installed in your computer is to download (install) PAT without JVM but you will have to download (install) separately JVM from Sun's Java site. This option, installing PAT separately and JVM separately, will make the JVM generally available to any program in your computer, that requires the latest JVM, including PAT. The size of PAT installer file alone is about 1.4 MB.

If JVM is already intalled in your computer, you may download (install) only PAT without JVM. The size of PAT installer file alone is about 1.4 MB.