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Monday, December 14, 2020

Where is NET SEND command in Windows 10, Windows 7, Vista?

Guys, today I'm going to talk about something that many people asked in the forums in which I participate.

What is NET SEND command?

The  Windows XP "Messenger" service became so famous, that many users use it by command line. Who has never seen someone click on "Start", "Run" and type "NET SEND username "Where are we having lunch today?". The NET SEND command is part of the Windows XP messenger and only works if this service is activated. Many companies have abolished the use of NET SEND just for this reason. I once saw a coworker typing "NET SEND * Hello! 

When entered, the command simply sent instant messages to all users who are connected to the same network. Imagine about 500 people received the message. Lucky for him he wasn't fired after that event, but NET SEND option was deactivated.

NET SEND is not only used for play. By the way, using it as a joke is just one of its uses. Several software apps use it as a way to exchange messages, even with database servers, as I witnessed.

The question, on Windows Vista and consequently on Windows 7, 10 is: Where is our dear friend NET SEND? Try typing the command and you will have a surprise: the "NET" service still exists, but the SEND function has been removed.

MSG command is successor of NET SEND command

And now? Don't be sad: Microsoft has implemented a replacement for NET SEND: MSG command. That's right: MSG. Just type this command at the command prompt and you will see that there are several ways to use it, including the simplest being similar to your grandfather NET SEND. Here is just one example, typed at the Windows 7 command prompt with the simplest syntax possible:

MSG <user> <message>

Example: "MSG Alex Hello World

(where "Alex" is the name of the target user, on the network)


Result of using the "MSG" command

As simple as that? Absolutely. The syntax reminds me of the old NET SEND. It is also possible, as in NET SEND, to send a message to a user with a specific server name. See the syntax below:

MSG <server>>user>>message>

Just type "MSG" and see all the available options:


Anyway, If the company where you work allows the use of MSG, you can go back to the old command-line conversation: "MSG Alex when lunch?" 

Note: MSG does not need the active messenger service.

Possible errors when sending messages:

After some comments on functioning problems, I made new tests and came to the solution of some common errors.

"Error 5 getting session names".

Possible reason: if you are on a domain network and the message is not sent, you may need to change the "AllowRemoteRPC" registry key to "1″" on each local machine in the following REGEDIT path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server

<user> does not exist or is disconnected

 The machine that would receive the message needs to have the source user as the administrator of the destination machine. Example: user "john" wants to send a message to user "fred". The machine used by the "fred" user must have the "john" user as an administrator. I am trying to find more information in case the user cannot be the administrator.

 Problem of messages sending between Windows 10 and Windows Vista/7, XP machines, or vice versa.

I did not find ways of integration for sending by "MSG" command from Windows 10, 7, XP machines to Windows XP machines as well as NET SEND from Windows XP machines to Windows Vista/7/10 machines.

Other errors: always check the firewall. In some situations, I noticed that the firewall was the problem that blocked the exchanges of messages. Some network security policies can also block sending. In this case, it is necessary to check with the network administrator.

Can I use any simple LAN messaging application without typing all these boring commands?

Yes, there are lot of applications that could replace these commands. And they works perfect between different Windows systems. You can send messages between old Windows XP and latest Windows 10 easily.



Tuesday, April 21, 2020

Is LAN messenger safe?

Christine Jewett:

I run a public-facing department within city government. Our staff chose LAN messenger to communicate internally in our building primarily as a safety tool, to alert staff when an irate or dangerous member of the public was on site, etc. We have been using LAN chat for sixmonths & love it. The IT technician  discovered that a staff member was using it and blocked it, out of vague network security concerns. (he also is opposed to "modern" things like email & remote desktop access. 

Looking for info to show that LAN messaging apps is not a threat, but a great tool. Thanks for your help.

Anthony Chatterton:

Hello! First of all, thank you for your question.
The main goal of security is: all LAN messenger traffic remains in your network.
No traffic outside the company building or outside your office floor if you wish.
If you trust your local network connection, you can also trust LAN messenger.





If not, you should know that all traffic is heavily encrypted with a 256 bit AES encryption algorhytm shared only in the  dedicated p2p connection between 2 LAN messaging clients. This makes external access is a really difficult  thing for a hacker.
And you can always say: if your IT staff doesn't trust his local network, the problem is not LAN messenger but the network.
Sorry for the humour. It's safest thing to get people to use LAN messenger. 
Our office uses it at work and despite this I have had to fight against the distrust of people who see evil in a "messenger".

LAN messenger is an app designed to have a "intranet messenger" safely inside your office.

As I know that some army and goverment security departments in the world is using it after testing its reliability for months.
But in the end you should believe my words and I don't know how convincing I can be.
If I anyone  created malicious  commercial software, he will loose all credibility about his IT work.
I don't know what to tell you more..

And thanks again for having used and appreciated LAN messenger for months.


Christine Jewett:

Thanks so much for the clear answer. Of course, the real issue here is NOT the software, but the mindset. All I can do is try to educate and have faith that human beings can learn and evolve. A big thanks for offering such a simple-to-use and (therefore) elegant program. After trying several alternatives, ALL of my staff are on board and love what you've suggested. It keeps my staff safe. 
Thanks again.

Thursday, November 21, 2019

Lan Messenger does not see other contacts on the network.

sysadnio:

Installed the Qualia application LAN messenger from https://sourceforge.net/ product  on computers in the network. There are almost no any problems , but this messenger doesn't see SOME machines on Win7 other and  vice versa. The firewall is disabled, the netstat-bn command shows that when the messenger is running a certain wininit.exe occupies port 50000 (by default it is port messenge.). If you shut down the LAN messenger, then  wininit.exe frees the port. In a normal situation, the port 50000 is missing.
How to overcome this trouble?

Added:
The question can be formulated in another way.
Why when you start the LAN messenger (and maybe any other application) in the processes appears wininit.exe?



maranelo:

The same problem.

I use it at home to communicate with my wife in the kitchen. My machine-Win 8.1 x64, direct ethernet connection; it has a laptop on Wi-Fi, Win 7.0 x32.

All within 192.168.1.0/24 under one router/AP (ASUS AC66U, latest stock firmware). Messaging clients see/do not see each other  in 50/50 cases. Numerous f5 refreshes usually help. The broadcast goes, nothing is filtered, any firewalls (neither on a router, nor on clients).

I  just want a stable work.


bringotus:
First of all, download another client from here: chocolatey.org/packages/slm . This messenger has a more stable work over LAN, check if this helps. If this messenger has the same issues like Qualia, check your network and firewall settings.

May be this video guide: https://www.youtube.com/watch?v=06CI3SiEnUU can help to fix it too.

Thursday, November 7, 2019

Secure LAN Messenger with File Sharing Features


When you are working in an office environment, it is more common that your computers are connected over a local area network LAN or through a wireless WiFi router (in which case it would be WLAN). Working in such an environment, you must have the ability to communicate with your coworkers over the local network itself easily. A local messaging software called Softros LAN messenger can be used to communicate with other people over the same LAN securely.



Softros is an intranet instant messenger that utilizes the local area network to communicate with the other users of the same network. The program allows you to freely transfer files among other users within the range of the local LAN. It uses AES cipher to secure all the communications and works on all the popular operating systems like Windows, Linux, and Mac.

The LAN messenger is available in the form of a Windows installer package and as Android messaging app and Mac application. The application does not require installation on the server,  which leaves no troubles of installation in the office. It uses your computer device user name to identify you, but it can be changed if necessary. It is possible to conduct group conversations and to send messages to people who are not currently logged in. All the user activity is recorded in history.

BEST LAN messenger latest review: https://www.youtube.com/watch?v=2lDI7k0M8hE

You can configure and change the advanced administrative settings. There are a lot of customization options available. You can change what action must be open or forbidden for office users.

Conclusion: Softros chat is a straightforward way to communicate with other people over the same LAN or WLAN network. It features secure AES encryption of all the communication, easy sharing of files, and the desktop screen. You can also have group conversations with many different people at the same time.
You can download Softros messenger from https://messenger.softros.com/downloads/

Wednesday, July 3, 2019

Mac Apple store: LAN messenger

A simple messenger for the local network. What corporate instant messenger to choose to work on the local network for Mac and Windows computer? What are the messengers and what to use in your network?



In order to quickly and easily connect Windows and Mac LAN messenger over a local network, you need to understand how each running copy of the program (hereinafter in this section - the messenger) collects its list of users.

download and install LAN messenger for Mac OS X


First, one of the instant messengers sends a UDP packet to the broadcast address of the local network. This address he calculates himself, knowing the IP address of the computer on which it is running, and its subnet mask. The peculiarity of the broadcast address is that the packet sent to it is received by all computers on the local network. Having received such a packet, other instant messengers running on this network respond with a TCP packet to the sender's address. As a result, the instant messenger-sender of the first packet receives packets from the remaining messengers of the local network, and, based on these responses, compiles its list of users. This method is used by all instant messengers running on the network, sending one packet to the broadcast address and receiving direct responses from all other network participants. Thus, Softros LAN Messenger works within the same subnet without any settings.

Messenger or instant messaging (IM-Instant Messenger) is nothing more than a technology that allows you to communicate using text messages on the network or via the Internet. Messenger is very profitable such technology of virtual communication in the network-for example, e-mail. Since the communication takes place in real time and the interlocutors can see the message immediately after sending it. Also, even if one of the users was not available at the moment, the message will be delivered to him as soon as he connects to the server. With the help of messengers, you can easily organize effective communication between employees in the enterprise, as well as significantly save on phone calls, for example, if the company's divisions are located in different cities or even countries. In this case, you do not have to pay bills for long-distance calls of employees, but only the services of an Internet provider.

Thursday, May 16, 2019

LAN messenger: a port address 50000 conflict on start up

Pete:



How do I fix this error?
When first butting the computer an error message occurs. I have changed the portal to 60000 and the same error message happens. What's up?

Error Message: "A port address conflict has been detected. LAN Messenger will close now. LAN Messenger cannot start because another application is using the port configured for use with LAN Messenger."

ng_sa:

Hi

This software should now be thought of as 'Abandonware' no one can help you here.

I have tried to get a login for this forum & that does not even work.

I've migrated our office to alternative LAN messenger https://messenger.softros.com

But you will have to download the source code & work out the problem for yourself, sorry for such bad news !!!


LAN messenger download





Lilia Palma 

Hola, tengo este mismo problema, será que alguien ya lo ha resuelto?
Ayuda... por favor!
Vinod:
Still the issue persist..I m also facing the same issue. I m using version 1.2.35. Any solution for this issue..
Maria333:
Our office migrated to Softros lan messenger, recommend to try this app and see if this error happen again.
Randi:

At the command prompt, I ran netstat -noa. Then, tasklist. Netstat -noa would tell you if the port 50000 is used or not, if it is, then it will tell you which PID is using the port. Then, tasklist command would tell you the program file name with the PID. For my case, nothing was using the port 50000, so it didn't help at all. 

Since this issue was only happening to Dell laptop computers we have, not desktop or HP computers, I assumed it was something to do with Dell pro-loaded software. After uninstalling those things like Dell backup and recovery, Dell whatever else not required for the computer to function well, we no longer had this issue.
JoeK:
Just go to the task manager, stop the process for lan messenger, then relaunch app. works for me
k_d:
just go to the task manager, stop the
process for lan messenger, then
relaunch app.
now it will show in notification icons.
Master:
i have two alternate to solve this:

A.
Change the communication port in all machines for LMC
change tcp/udp port from Tool>Preference>network.

in case application is not at all opening then, add below line in the .ini file placed at "%appData%\Roaming\LAN Messenger\LAN Messenger.ini" and open application.
Code:[Connection]
UDPPort=50001
TCPPort=50001

where 50001 is the new port.

B.
Identify & kill the process,which uses 50000 port with following detailed process:
1.From Task manger, open resource monitor
2.Go to network tab and check under tcp connections,PID of the application,which is using "local port" as 50000
3.Note down PID (process ID) of the application and do 'end process' from network tab.
ex. in my case it was 'svchost.exe' with particular PID
4.Now open LMC,it must work.

Hope this info helps everyone like me...





Wednesday, April 10, 2019

PC to PC messaging

Woodrow Gaylord:

I have two computers that I wish to be able to use a messenger on to talk to
each other.
As such I am looking for a free (if there is one) LAN messenger.
Does anyone know where (if there is one) I could get hold of such a program.
Or if there is no free programs about how much would I have to pay for a
decent one.
Or if all else fails is there a way to do it with windows.

Trever Stokes:

Msg command
https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/msg

How to use the Net Send command
https://www.net-send.net/netsend-tool.html

Woodrow Gaylord:

Thanks for the reply Carey, unfortunately due to my ignorance and technical
deficiencies (and possibly having sp2)  I am unable to get it to work.
Thanks any way for your help

Monserrat Glover:

Sir, You could try  Softros messenger for Lan Chat. The best Lan
Messenger software having many features like Lan Chat, Group Chat, Desktop
Sharing, and File transfer. Download it here https://messenger.softros.com/downloads/