System requirements for proper web kameleon installation (Server Edition licence):

• operation system: FreeBSD / Linux;
• web server: Apache,  version >= 1.3.x;
• RDSM: PostgreSQL, version >=7.2.x; 
• PHP: version => 4.x.;
• ION Cube Loader (free).

For the user's convenience we recommend following hardware configuration: 

• RAM 512 or 1024 MB; 
• processor Pentium III;  
• disk system RAID.