I just found my pubring.gpg and secring.gpg files, which I created for experimenting purposes years ago. I also know, in ascii, my public key. Because I can't remember how I generated my keys and what program I used, I actually don't know how to make use of these files. I remember my passphrase as well.
So, how can I make use of these files? Is there a concise guide for this? Is there a convenient GUI program under windows to handle these?