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What’s spyxx_amd64.exe (Microsoft Spy++ 10.0 (Toolbar))? Is it safe or a virus?

spyxx_amd64.exe is a tool provided by Microsoft as part of its Microsoft Visual Studio suite, specifically for inspecting and debugging Windows applications. Known as Microsoft Spy++, it allows developers to monitor and analyze the behavior of applications, processes, threads, and windows' messages in real time. It provides a visual representation of the hierarchical relationship between window components and system objects, which helps in debugging graphical user interface (GUI) issues or communication between processes. With features to view message logs and object properties, it is primarily utilized for diagnosing application behavior and fine-tuning performance during development.

Researched by Carl @ SpyShelter Labs

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A Trojan is a harmful software that pretends to be a legitimate program or file to deceive users into downloading it. It can steal personal information, damage files, or give hackers control over the infected device.

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Who makes spyxx_amd64.exe (Microsoft Spy++ 10.0 (Toolbar))?

We’ve found Microsoft Corporation should be the publisher of spyxx_amd64.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: October 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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