WebLogic Server/Portal 10 

• Solaris OS on SPARC platforms, versions 9 and 10 (32-bit and 64-bit systems)

• Solaris OS on x86 platforms, versions 9 and 10 (32-bit and 64-bit systems)

• Red Hat Enterprise Linux Advanced Server 4.0 and 5.0 (32-bit and 64-bit systems)

• Windows 2008, Standard Edition and Enterprise Edition (32-bit and 64-bit systems)

• Windows 2003, Standard Edition and Enterprise Edition (32-bit and 64-bit systems)

• IBM AIX® 5.x and 6.x. (32-bit and 64-bit systems)

Minor versions of these platforms, including updates, service packs, and patches, are also supported.