To enable legacy variables and have the Web Agent use underscores in the HTTP header names, set value of the ACO Parameter: LegacyVariables=yes.
LegacyVariables
Specifies if the Web Agent uses underscores in HTTP header names. With some web servers (such as the Sun Java System), using the underscore character in the HTTP headers causes problems with some applications.
When this parameter is set to no, the HTTP headers will not have underscores, as shown in the following example:
When this parameter is set to yes, the HTTP headers will use underscores, as shown in the following example:
Default: (traditional agents) Yes
Default: (framework agents) No