First Run, file without extension

What is this file called First Run, which shows no extension to the file name? It is in the Comodo\Dragon directory. Why would a file on a Windows system not have an extenstion? All my computers ARE set to show all file extension!

Hi string_game,
It is just a Zero Byte file, with no file type specified.
The file itself has no content.

All it does, if present it instructs Dragon that the first browser run has been completed.
If it is not present or gets deleted, Dragon will default back to its first run page when launched.