Besides Agent for Apache HTTP Server 2.0.54, web agents do not support the 64-bit version of a deployment container (6474344)

For example, Agent for Sun Java System Web Server 6.1 does not support the 64-bit release of Sun Java System Web Server 6.1.

Workaround:Except when using Agent for Apache HTTP Server 2.0.54, do not use a web agent with a 64-bit version of the supported web container.