What is nsl.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the nsl.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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Nsl.exe file information

Windows Task Manager with nsl
Nsl.exe process in Windows Task Manager

The process known as AnalogX NetStat Live belongs to software AnalogX NetStat Live or NetStat Live by IBM ( or AnalogX (

Description: Nsl.exe is not essential for the Windows OS and causes relatively few problems. The nsl.exe file is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 16,429 bytes (66% of all occurrences) or 16,384 bytes. 
The program has no visible window. Nsl.exe is not a Windows core file. Nsl.exe is a file with no information about its developer. Nsl.exe is located in the Windows folder, but it is not a Windows core file. Therefore the technical security rating is 64% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you still experience problems with nsl.exe, you can safely remove the program using the uninstall program of Lotus Notes 6.0.1 es (Control Panel ⇒ Uninstall a Program).

Recommended: Identify nsl.exe related errors

If nsl.exe is located in a subfolder of "C:\Program Files", the security rating is 38% dangerous. The file size is 126,980 bytes (33% of all occurrences), 184,304 bytes or 174,080 bytes. The nsl.exe file is not a Windows system file. The application starts upon Windows startup (see Registry key: MACHINE\Run). The program has no file description.

Uninstalling this variant: If you still experience problems with nsl.exe, you can do the following:

External information from Paul Collins:

Important: Some malware disguises itself as nsl.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the nsl.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

Net Stat Live
  Todd Van Winkle   (further information)
Net Stat Live
connection monitoring tool from Analog X
  Jrene   (further information)
System/network usage monitoring utility.
It is a small program called Net Stats Live from It is a great utility for displaying your actual network throughput, but does sometimes hang and use lots of resources. It is safe to kill if needed. I personally run it all the time just so I can see how fast traffic is moving in and out of my machine.
  Brent Wolsey   (further information)
this program by Analog X monitors CPU usage as well as network traffic on your computer
  cabby   (further information)
nsl.exe is a part of Lotus Notes email client software. When installed over certain software a nsl.exe error is generated upon Windows startup, however it does not cause the program to not run.
nsl.exe is a part of Lotus Notes software.
nsl.exe is a program that opens up other programs and shuts down windows firewall.

Rating chart

Summary: Average user rating of nsl.exe: based on 9 votes with 9 user comments. 8 users think nsl.exe is essential for Windows or an installed application. One user thinks nsl.exe is dangerous and recommends removing it. One user is not sure about it.

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Best practices for resolving nsl issues

A clean and tidy computer is the key requirement for avoiding problems with nsl. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the nsl.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

nsl.exe [all]