There are three available scan options in Spyware Doctor:

Full Scan

A Full Scan is a complete, in-depth scan of your system. This function scans all fixed drives on your computer. See Full Scan.

Intelli-Scan

An Intelli-Scan will scan your system for any active malware or for malware that is set to activate at a later time. See Intelli-Scan.

Custom Scan

A Custom Scan allows you to select specific folders and scan tools for the scan. See Custom Scan.