INT E0 - REAL/32 - "N_LOGON" - LOG OFF A SERVER
	CL = 41h
	DS:DX -> LPB (see #04025)
Return: AX = status (0000h,0CFFh,0DFFh,0EFFh,FFFFh) (see #04030)
	may destroy SI,DI,DS???
SeeAlso: INT E0/CL=40h