How do I record from Microphone?
Double-click the speaker icon in the taskbar tray at the lower-right corner of your screen, and in the Play Control window click menu Options->Properties, check Recording, and click OK, select the microphone input in the mixer control.

How do I record Telephone calls?
You need to have some sort of telephone/sound card interface for recording telephone calls.
A handset plug interface could be used to record calls from a specific handset.

Adapter from AHERN Communications can be used to record telephone calls.
Here is another device from MSC Electronics

Swedish telephone recording module from Clas Ohlsson (Art. no. 32-2610).

How do I uninstall?
Click Start button->Control Panel->Add/Remove Program. Find the name Snooper, click the Add/Remove button, and follow the instructions.