# Requirements and Support Information

Before you start using the Authentication Agent APIs, review the following section to ensure that your system meets the necessary minimum requirements. The Authentication Agent API supports the Java 2 Platform, Standard Edition, versions 1.5 and 1.6. ## Platform Support The Authentication Agent API supports the following operating systems: ### Windows
Version | Binary Compatibility
Windows 2003 R2 SP2 | 64-bit
Windows 2008 SP2 (Data Center, Standard, Enterprise, and Web Server Editions) Windows 2008 R2 Windows 2008 R2 SP1 | 32-bit and 64-bit 64-bit 32-bit and 64-bit
Windows Vista (Business and Enterprise Editions) | 32-bit and 64-bit
Windows 7 Windows 7 SP1 | 32-bit and 64-bit 32-bit and 64-bit
### UNIX
Version | Binary Compatibility
AIX 5.3 and 6.1 | 32-bit and 64-bit
HPUX 11i v3 Update 5 | 32-bit and 64-bit
RHEL 4.8 (AS/ES) and 5.5 | 32-bit and 64-bit
SUSE Linux 10 SP2 and 11 | 32-bit and 64-bit
Sun Solaris 10 with and without Zones | 32-bit and 64-bit
Authentication Agent API is supported on VMware ESX 3.5 and VMware vSphere 4 with the following operating systems.
Hosted Operating System | VMware ESX 3.5 | VMware vSphere 4
Windows 7 Enterprise edition (32-bit and 64-bit) | X | X
Windows Vista Business and Enterprise editions (32-bit and 64-bit) | X | X
Windows 2008 R2 Standard, Enterprise, Datacenter, and Web Server editions (64-bit) | X | X (64-bit)
RHEL 5.5 (32-bit and 64-bit) | X | X (64-bit)
Solaris 10 with and without Zones (32-bit and 64-bit) | X | X (64-bit)
SUSE Enterprise Linux 11 (32-bit and 64-bit) | X | X (64-bit)
## Compatibility This release of the Authentication APIs is compatible only with certain versions of the Authentication Manager server. ### Interoperability with Authentication Manager This release of the Authentication Agent API supports Authentication Manager 6.1.2 and 7.1 SP2 and 7.1 SP3. ### Backward Compatibility You can reuse your existing agent code which uses APIs from version 8.1. See Upgrading from Version 8.1 for information. Top