spd_id

Unique (server wide) identifier for the plug-in. 

spd_vendor

Name of the vendor supplying the plug-in such as Sun Microsystems, Inc.

spd_version

Plug-in revision number such as 5.2, not to be confused with SLAPI_PLUGIN_VERSION, which specifies the plug-in API version supported by the plug-in.

spd_description

Short description of the plug-in such as Sample post-operation plug-in .