gvSIG can run in a 64 bits computer provided that the Java Virtual Machine which uses gvSIG is a 32 bits one, since this platform is where binaries are compiled for currently.

Windows

By default gvSIG for Windows uses the system default JVM, so it will be necessary to assure it is a 32 bits one. If, for any reason, default JVM must be 64 bits, it is possible to force gvSIG to use another JVM different than the default one.

• gvSIG 1.11: It will be necessary to edit gvSIG.ini file (at the "bin" folder of the gvSIG installation folder) and change the system JVM directory for the 32 bits one.
• gvSIG 1.12: It will be necessary to install an add-on that will install a 32 bits JVM and force gvSIG to use it. Consult instructions at the gvSIG blog.
• gvSIG 2.0: This version has an add-on included that force gvSIG to use a 32 bits JVM.

Linux

In Linux case, by default, gvSIG installs a valid and exclusive for gvSIG JVM, so accepting installation default options, there will be no problem.