While the operation of different facilities, which are connected to a computer via consecutive port, there may appear the necessity to commence up utility programme (for these facilities) not in the machine, to which the facilities connect straight, but in the remote machine, that is connected to the facility server via the network (TCP / IP). The developers of the given facilities very often face with such a necessity. For instance, during the debugging in a remote machine or when different domicile with the help of different machines (which are however connected to one machine) keep the same facilities. LNSD is designed especially for the solving of these problems. The use of our product gives you the possibility to hand the remote access to consecutive port via TCP / IP. The product consists of tercet parts: 1. LVSD is a programme emulator of consecutive ports (up to 255) for operational arrangement W2K / XP. 2. LNSD client is the servicing, which realizes the change between LVSD and TCP / IP. 3. LNSD server is a servicing which realizes the change between a actual driver of the consecutive port and TCP / IP. LNSD client and server handle two flows: outcoming and incoming. The client takes the bytes that were transferred to altogether the virtual ports earlier and then transfers them to the server, which was started up on the other computer. Also the client receives flows from the server and gives the bytes (as those which came from the outside) to LVSD. IP speak of the receiving server, port total and the total of the actual consecutive port on the receiver are specified on the client for each port. The server receives the information from clients and then transfers it to the ports specified by them. As for the flows, which came from these ports, the server transfers them to the client as easily. Besides the data flow, TCP / IP transfers the overhead information around the shape of different signals on consecutive port physical contacts.