Back in November, I uploaded an assembler coded encryption DLL to:

http://www.masm32.com/board/index.php?topic=10365.0

I though it might prove useful here - the full masm32 source code is included in the posted message. I do seem to have some recall of looking at some PB code snippets when I wrote that years ago so it only seem fair that it come back here for repayment.