What is stobject.dll?

The genuine stobject.dll file is a software component of Microsoft Systray|Microsoft Windows Operating System by Microsoft.
As an important Windows file, 'stobject.dll' provides functionality to the Windows OS System Tray. The Systray shell service cannot function without this library file, which also handles the startup services of many applications in Windows. The DLL is essential to Windows, beginning with XP and is used on both 32 and 64 bit systems. Windows is a leading software corporation that provides reliable operating systems and software applications.

Stobject stands for Systray shell service object

Stobject.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. The following information can help you determine if stobject.dll is a Windows system file or if it belongs to an application that you can trust.

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Stobject.dll file information

The process known as Systray shell service object belongs to software Microsoft Windows Operating System by Microsoft (

Description: Stobject.dll is not essential for the Windows OS and causes relatively few problems. The stobject.dll file is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 139,776 bytes (28% of all occurrences), 121,856 bytes and 34 more variants. 
The program has a visible window. The process starts upon Windows startup (see Registry key: ShellServiceObjectDelayLoad). The file is not a Windows core file. Therefore the technical security rating is 14% dangerous, however you should also read the user reviews.

Recommended: Identify stobject.dll related errors

Important: Some malware disguises itself as stobject.dll, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the stobject.dll 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

stobject.dll is a critical Windows file, it is used to provide functionality to your system tray.
The stobject.dll (Systray-shellserviceobject) is loaded by explorer and responsible for the system tray. Without it there will be no systray at all.
I was wondering if stobject.dll should be on a delayed startup because i am using WinPatrol to look at all my startup programs and it says its delayed

Summary: Average user rating of stobject.dll: based on 5 votes with 4 user comments. 4 users think stobject.dll is essential for Windows or an installed application. One user thinks stobject.dll is dangerous and recommends removing it. One user is not sure about it.

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Best practices for resolving stobject issues

A clean and tidy computer is the key requirement for avoiding problems with stobject. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the stobject.dll process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

stobject.dll [all]