INT 21 - LANtastic - CHANGE PASSWORD
AX = 5F85h
ES:DI -> buffer containing "\\machine\oldpassword" 00h "newpassword"00h
Return: CF clear if successful
CF set on error
AX = error code
Notes:  must be logged into the named machine
this function is illegal for group accounts


215F85 - LANtastic - CHANGE PASSWORD