What is rapimgr.dll?

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

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Rapimgr.dll file information

The process known as ActiveSync RAPI Manager belongs to software Microsoft Windows Mobile Device Center or Windows Mobile-based device connectivity (RapiMgr) or Windows Mobile-based device connectivity (rapimgr) by Microsoft (

Description: Rapimgr.dll is not essential for the Windows OS and causes relatively few problems. Rapimgr.dll is located in a subfolder of C:\Windows. Known file sizes on Windows 10/8/7/XP are 183,688 bytes (78% of all occurrences), 167,936 bytes or 167,424 bytes. 
The service can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. It is not a Windows core file. Rapimgr.dll is certified by a trustworthy company. The file is a Microsoft signed file. Therefore the technical security rating is 5% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you run into problems with rapimgr.dll, you can also visit the vendor's support site or uninstall Windows Mobile Device Center or Windows Mobile Device Center Driver from your computer using the Control Panel applet Uninstall a Program.

Recommended: Identify rapimgr.dll related errors

Important: Some malware camouflages itself as rapimgr.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the rapimgr.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

Part of Microsoft® Windows Mobile® Device Center
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Summary: Average user rating of rapimgr.dll: based on 1 vote with 1 user comment. One user thinks rapimgr.dll is essential for Windows or an installed application.

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Best practices for resolving rapimgr issues

A clean and tidy computer is the key requirement for avoiding problems with rapimgr. 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 rapimgr.dll 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

rapimgr.dll [all]