For the Windows Procserver version X.X, run 'ProcServer-X.X-win-x32-Install.exe' to install.
and for Linux ProcServer-X.X-linux-x32-Install.
Note: The user that install it must have administrative permissions:
On Windows Vista/7 click the right mouse and select 'Execute as administrator' in the contextual menu.
On Linux start with sudo (super user do) to have this privileges
Must select a directory, belonging to any user, that has enough free disk space to maintain the temporary calculation files that will need the users. Later, procserver can run either as this user or as root.
Follow all the installation instructions to perform the install.
After the installation process, the collection of problemtypes must be copied (see section Installing problemtypes).
The different ways to execute the server are described in section Procserver setup.
Note: procserver and the installer are x32 processes, but they can be used also for x64 platforms.
Some Linux x64 distributions by default don't have x32 support packages installed.
For example, it seems that the default 64-bit installation of Ubuntu (and kubuntu, xubuntu) does not include the 32-bit support to execute 32-bit applications.
As explained here: http://ubuntuforums.org/showthread.php?t=583454 just by doing:
apt-get install ia32-libs lsb-core
(or through the synaptic package manager)