Visual Studio Mastery · Step 9 of 15
Extensions & the Marketplace
Learn to vet Visual Studio extensions like a security pro before you ever click install.
What you’ll walk away with
- Find and install Visual Studio extensions from trustworthy sources
- Evaluate an extension's publisher, permissions, and risk before trusting it in your workflow
- Apply a repeatable checklist to decide whether an extension is safe to use
- Manage and sync extensions consistently across multiple development machines
- Complete a hands-on evaluation of a real, live extension from the Marketplace
Questions people ask before they start
Is this course about building extensions, or using them?
It's about using them safely — finding, installing, evaluating, and managing existing Visual Studio extensions across your machines, not building your own.
Do I need any security background to take this course?
No. The 'Evaluating an Extension Before You Trust It' lesson walks through practical criteria anyone can apply, no prior security experience needed.
Will I actually practice evaluating a real extension, or is this just theory?
You'll do a hands-on exercise finding and evaluating a real extension from the Marketplace, applying what you learned in the earlier lessons.
I use Visual Studio on more than one computer — does this course address that?
Yes, there's a dedicated lesson on managing extensions across multiple machines so your setup stays consistent and safe everywhere you work.
How long is this course?
It's a single focused module, 'Extending the IDE Safely,' with four lessons covering finding, evaluating, managing, and practicing with extensions.
Is this course specific to Visual Studio, or does it cover other IDEs too?
It's specifically about Visual Studio and its Marketplace — that's the tool used throughout every lesson.