When starts, it shows "Select Drawings" dialog as shown below. Alternately, you can also start "Select Drawings" dialog by selecting File Æ New Comparison menu item.

In the "Select Drawings" dialog click on "Browse" button (
) to select Left and Right side drawings. Alternately, user can type in full path in the edit area for Left and Right side drawings.
After left and right side drawings are selected, click on "Compare" button to build comparison data and view comparison of two files. While comparison data is being generated, "Building Comparison Map..." dialog appears to show progress. User can cancel the process at any time by selecting "Cancel" button on "Building Comparison Map..." dialog.
Return to the Quick Start.