[CONNECT VBA] Is MS_VBA_OPEN_IN_MEMORY valid in CONNECT?

On another thread someone noticed that configuration variable MS_VBA_OPEN_IN_MEMORY is not mentioned in the MicroStation CONNECT Help doc, but it remains in the VBA CONNECT help doc. 

Does MS_VBA_OPEN_IN_MEMORY still participate in VBA project loading in a MicroStation CONNECT sesssion?