This function takes the following parameters:
String identifying the plug-in type as described under Plug-In Registration
1 to enable the plug-in on registration, 0 otherwise
String representation of the plug-in initialization function initfunc such as "my_init_fcn"
Pointer to the plug-in initialization function
Common Name for the plug-in
Arguments passed to the plug-in
Plug-in group identifier, typically obtained from SLAPI_PLUGIN_IDENTITY for the plug-in calling this function