Oh, by the way,
TiVo Desktop 2.5 is Vista compatible.
To be honest, I'm a Macintosh user, so I've never even tried Directshow Dump; I use TivoDecodeManager. And, it's been ages since I configured the password on it. Anyway, there shouldn't be any 'ohs' in it, only 'zeros', because I think it's hexadecimal. I'd enter the 12 hex numbers with colons with no spacing.