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What’s MSOIDSVCM.EXE (Microsoft Online Services Executable)? Is it safe or a virus?

MSOIDSVCM.EXE is a background process developed by Microsoft Corporation, associated with the Microsoft Online Services Sign-In Assistant.

It ensures continuous authentication support for Microsoft services like Office 365 and Exchange Online. This process typically runs under the SYSTEM account with elevated privileges.

Its presence indicates that your system is configured to have sign-ins to Microsoft's online services. I found information about this executable on Microsoft's own website (Microsoft Answers), plus its own description says a bit about what it does.

Researched by Laura @ SpyShelter Labs

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More about MSOIDSVCM.EXE on WINDOWS

Who makes MSOIDSVCM.EXE (Microsoft Online Services Executable)?

We’ve found Microsoft Corporation should be the publisher of MSOIDSVCM.EXE.

How do we know? Our SpyShelter cybersecurity labs focuses on monitoring different types of Windows PC executables and their behaviors for our popular SpyShelter Antispyware software. Learn more about us, and how our cybersecurity team studies Windows PC executables/processes.

What does it mean if someone is the publisher of a PC .exe (executable or process)?

The publisher of an executable is the entity responsible for its distribution and authenticity. Most processes/executables on your PC should be signed. The signature on the executable should have been verified through a third party whose job it is to make sure the entity is who it says it is. Find an unsigned executable? You should consider scanning any completely unsigned .exe on your PC.

Last updated: April 11, 2025

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Why should you trust us?

Our team at SpyShelter has been studying Windows PC executables for over 15 years, to help fight against spyware, malware, and other threats. SpyShelter has been featured in publications like The Register, PC Magazine, and many others. Now we’re working to share free, actionable, and easy to understand information about Windows executables (processes) with the world, to help as many people as possible keep their devices safe. Learn more about us on our "About SpyShelter” page.

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