What is rundll32.exe? 5 ways to see if it’s safe.

What is rundll32.exe?

Rundll32.exe is a crucial part of Microsoft Windows that’s made to launch functionality based in Windows DLL (dynamic linked library) files. For example if you’re using a Windows app that needs a DLL rundll32.exe will make it possible for that app to use the DLL it needs to operate. A Windows DLL library contains code that can be used by more than one program at a time on Windows, so if you disable rundll32.exe then it’s possible you could cause many parts of Windows, and many Windows apps to be unable to function.

Publisher: rundll32.exe should be signed by Microsoft Windows.

rundll32.exe stands for “run DLL 32 bit”.

Is rundll32.exe safe? 5 easy ways to see if rundll32.exe is safe or malware.

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Why does rundll32.exe access the network?

While monitoring the network activity or rundll32.exe from the USA with the GlassWire software we found it connects to settingsfd-geo.trafficmanager.net which appears to be controlled by Microsoft Corporation. We found no other network activity with the .exe. We believe rundll32.exe connects to settingsfd-geo.trafficmanager.net to help manage the distribution of traffic across your PCs endpoints. This traffic management seems to happen at the DNS level to help your PC and apps work properly.

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