In addition to the current answer, here's a guide with some alternative formatting and pictures (though the steps largely remain the same. Adapted from to [Enable Aero Desktop Experience in Windows Server 2008 R2][1]

### First, **Install Desktop Experience in Windows Server 2008 R2**:
1. Click Start > Control Panel > Programs & Features > Turn Windows Features on or off.
2. In the Features Summary section, click Add Features.
     * ![Add Features][2]
3. Select the Desktop Experience check box. 
     * ![Desktop Experience][3]  
   Install additional features if prompted
4. Click Install, you might have to restart your Windows computer.

### Next, **Enable the Themes service**:
1. Click Start > Control Panel > Administrative Tools > Services.
2. Click Themes.
     * ![Themes Service][4]
3. In the Startup type list, select Automatic and then click Apply.
     * ![Startup: Automatic][5]
4. Under Service status, click Start and then click OK.

### Finally, **Select an Aero theme**:
1. Right-click on the desktop & select Personalize.
2. Click Themes.
3. Under Aero Themes, click an Aero theme.
     *  ![Aero Theme][6]


  [1]: http://www.thewindowsclub.com/enable-aero-desktop-experience-in-windows-server-2008-r2
  [2]: https://i.stack.imgur.com/86Z1b.png
  [3]: https://i.stack.imgur.com/hMRer.png
  [4]: https://i.stack.imgur.com/nMSzm.png
  [5]: https://i.stack.imgur.com/rXlsA.png
  [6]: https://i.stack.imgur.com/5fRBZ.png

I'm using Windows Server 2008 R2 as a Workstation and would like to enable Aero Glass for some software development. Is there a way to enable Aero Glass on Server? 

Thanks in advance, 

NieAR