No matter what I do, the menu item doesn't show - Team Foundation Server

You're using team foundation system.
And you have installed the client on the developer's machine, but when you right-click on a folder the item Team Foundation Server with its sub-items

Get Latest Version
Add
Check Out for Edit
and etc...

don't show
What do you have to do?

Probably you forgot to install

TFS_ObjectModel_enu.exe

 

After you install the exe above, when right-click the folder, the Team Foundation Server will show on the suspended menu.

 

Há!