Then click onto 'counter.exex' and rename the file as fcounter.exe before
saving it. You might also want to first create a folder just for it called
Counter, and then save fcounter.exe into it. Afterwards then go into that
folder and double click onto that file to unzip it into your computer.
After unzipping it then double click onto its icon (or counter.exe) to use
it. It will show you the frequency you put into the computer at the
microphone jack (with a 3.5mm mono plug). Just buy one at Radio Shack (in
the USA) or any electronics parts house, plug it into the mic jack (if your
computer has one), and the signal source.
Chris Gupta