Int 21 Fn 5F41  u - LAN Manager Enhanced DOS - Local Netserviceenum        [N]

   AX = 5F41h
   BL = level of detail (0000h, 0001h or 0002h)
   CX = buffer length
   ES:DI -> buffer of service_info_0, service_info_1, or service_info_2
       (see below)

Return: CF clear if successful
       CX = entries read
       DX = total available
   CF set on error
       AX = error code

Format of service_info_0 structure:
Offset Size    Description
 00h 16 BYTEs  name

Format of service_info_1 structure:
Offset Size    Description
 00h 16 BYTEs  name
 10h   WORD    status bitmask (see below)
 12h   DWORD   status code (see below)
       (also see Microsoft LAN Manager Programmer's Reference)
 16h   WORD    process id

Format of service_info_2 structure:
Offset Size    Description
 00h 16 BYTEs  name
 10h   WORD    status bitmask (see below)
 12h   DWORD   status code (see below)
 16h   WORD    process id
 18h 64 BYTEs  text

Bitfields for status bitmask:
 bits 0,1  00 uninstall
       01 install pending
       10 uninstall pending
       11 installed
 bits 2,3  00 active
       01 Continue pending
       10 Pause pending
       11 paused
 bit 4 uninstallable
 bit 5 pausable
 bit 8 disk redirector paused
 bit 9 spooled device redirector paused (printing)
 bit 10 communication device redirector paused

Values for status code:
 high word
    3051 Bad parameter value
    3052 A parameter is missing
    3053 An unknown parameter was specified
    3054 The resource is insufficient
    3055 Configuration is faulty
    3056 An MS-DOS or MS OS/2 error occured
    3057 An internal error occured
    3058 An ambiguous parameter name was given
    3059 A duplicate parameter exists
    3060 The service was terminated by NetSeviceControl when it did not respond
    3061 The service program file could not be executed
    3062 The subservice failed to start
    3063 There is a conflict in the value or use of these parameters
    3064 There is a problem with the file
 low word
    3070 There is insufficient memory
    3071 There is insufficeient disk space
    3072 Unable to create thread
    3073 Unable to create process
    3074 A security failure occured
    3075 There is bad or missing default path
    3076 Network software is not installed
    3077 Server software is not installed
    3078 The server could not access the UAS database
    3079 The action requires user-level security
    3080 The log directory is invalid
    3081 The LAN group specificed could not be used
    3082 The computername is being used as a message alias on another computer
    3083 The workstation failed to announce the servername
    3084 The user accounts system is not configured properly