eu/iwb/help_type is a SAP Parameter attribute which is used to control Info Workbench: Type of Extended Help (format/access) information. This is available within R/3 SAP systems depending on the version and release level.
Below is the standard documentation available and a few details of the attributes values .
The parameter specifies the type of help (format and type of access)
that is used for the Extended Help.
From Release 4.6C, the online help settings (/eu/iwb/*) are made in the
IMG (General Settings > Setting Variants for Help).
See SAP Parameter Documentation for full SAP documentation for this profile parameter.