Changing .net references in vb program from .NET 2.0 to .NET 4.0

I have a program that was done several years ago and has references to .NET 2.0. How can I change this to .NET 4?
.NET 2.0
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Have you already changed your project's targeted framework to your desired version (4.x)?

Also, I'd strongly recommend going to at LEAST 4.6. Go as high as you can while staying compatible with your target audience's framework. So if you're in an office environment where everyone should be on 4.6.2, then target 4.6.2.

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BrianAuthor Commented:
How do I change the project's targeted framework?  I added C:\Windows\Microsoft.NET\Framework\v4.x to my reference paths, but that did not change the version listed under References.
Reference Path
Chinmay PatelChief Technology NinjaCommented:
Hi Brian,

If you have th source code with you, you can do that from Application Page or Project Properties dialog. Please keep a backup of the project and be ready to fix (possible) breaking changes.

Once you have opened the project in Visual Studio -> right click on the Project -> Properties -> Application -> Target Framework.

All the best.

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Yeah, what he said. (points up) :)
Chinmay PatelChief Technology NinjaCommented:
Yikes :P you already said that.. I keep the tabs open and answer them one by one :P
BrianAuthor Commented:
Thanks for the help!
David Johnson, CD, MVPRetiredCommented:
change it here and the references will change by themselves
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