What is sidemngr.dll?

Sidemngr.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 sidemngr.dll is a Windows system file or if it belongs to an application that you can trust.

Click to Run a Free Scan for sidemngr.dll related errors

Sidemngr.dll file information

The process known as Protector appears to belong to software Application Manager by PerformerSoft.

Description: Sidemngr.dll is not essential for Windows and will often cause problems. Sidemngr.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 2,039,328 bytes (50% of all occurrences), 2,231,248 bytes, 2,521,552 bytes or 2,038,304 bytes. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. It can change the behavior of other programs or manipulate other programs. The program has no visible window. It is digitally signed. The service has no detailed description. It is not a Windows core file. The program is loaded during the Windows boot process (see Registry key: AppInit_DLLs). Sidemngr.dll is able to record keyboard and mouse inputs and monitor applications. Therefore the technical security rating is 72% dangerous.

Uninstalling this variant: You may want to uninstall the software Sidekick Manager using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program).

Recommended: Identify sidemngr.dll related errors

Important: Some malware also uses the file name sidemngr.dll, for example Adware.BHO.BProtector (detected by F-Secure), and Adware.ADH (detected by Symantec). Therefore, you should check the sidemngr.dll process on your PC to see if it is a threat. If Protector has changed your browser's search engine and start page, you can recover your browser's default settings as follows:

Reset default browser settings for Internet-Explorer ▾
  1. In Internet Explorer, press the key combination Alt + X to open the Tools menu.
  2. Click Internet options.
  3. Click the Advanced tab.
  4. Click the Reset... button.
  5. Enable the Delete personal settings option.
This will reset your Internet Explorer to its default settings. Your browser will start with the familiar start page and search engine—without popups, ads, cookies, but all browser add-ons are deleted too [1]. Make cleaning up your browser and your computer simpler and safer with Security Task Manager.


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Best practices for resolving sidemngr issues

The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active sidemngr process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the sidemngr.dll on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. 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.

Other processes

sidemngr.dll [all]