When downloading executables from the Internet, I always check to see if they are digitally signed before I feel safe running them.
In Windows, when right-clicking a digitally-signed file and selecting Properties, a digital signature tab will be present in the Properties dialog.
What I'd like to know is: does Windows actually verify the digital signature when it is shown in the Properties dialog, or does it merely indicate that the file contains a digital signature that may or may not be valid?