Because I'm mainly focusing on my web-based verison now, I thought I would release the source code to my old Visual Basic version of PPCalc just in case anyone wants it or can learn something from it. I originally wrote this tool on November 04, 2005 using Visual Basic 6. This verison of the calculator marked the first time where you could type in what you wanted to receive in one currecy and the calculator could tell you what someone would have to send you in a second, different currency to receive that amount. Performing this type of calculation though requires currency conversion and the currency exchange rates used by the calculator are still from 2005. If you want more up-to-date rates you should try my advanced web-version, as that's the one I update most frequently now. Although it's not much use as a currency converter, you can still use it to calculate and reverse calculate PayPal fees as much as you want in an offline format. Enjoy!
Download PPCalc 2.2 Source Code (Nov 04, 2005)

Filelist
CBitmap.bas
Form1.frm
frmAbout.frm
frmSerialEntry.frm
frmTrial.frm
LoadPNG.cls
mMain.bas