Maximum PC

Hi, guys! For the past few days, I've been wrestling with several different versions of the software that is supposed to work with my old TV tuner card. (It's a first version Technisat "Air2PC/AirStar 2" card with a B2C2 Flexcop chip, by the way.) For whatever reason, I've had repeated problems in downloading these versions successfully. It may be my mobile broadband adapter is acting up, it could be atmospheric conditions--I have no idea!

What I DO know is that, when I try to unzip and install ANY of these archives (all ZIP files, by the way), the installation program invariably requires a reboot very early on in the installation process. In the process of rebooting, Windows Security Central's firewall and/or virus protection is invariably turned off. Whether I turn it back on again or not, however, just as the installation seems like it's about to successfully complete, I get an error message saying, "Create Registry Key failed." I'm still running Windows XP with Service Pack 3, along with all the latest updates, because the product key I was furnished with when I bought Windows 7 Ultimate three years ago has been listed by Microsoft as being "blocked," which indicates that it was obtained by illegal means. Since I can't afford to get either Windows 7 or 8 until after my disability gets approved, I'm stuck with using either XP or Linux for the time being.

In any event, can anyone give me any indication as to what the problem is and how to fix it (aside from getting a new and more recent TV tuner card, which I also can't afford right now (SIGH!))? If so, PLEASE let me know something as soon as you can--before I tear out what little hair I have left! Thanks in advance!

Exactly how do I go about doing that? I've never tried that before!

I appreciate the prompt response, but can you go into a little more of a step-by-step explanation? The Microsoft article summarizes a little too much for my taste. Thanks!

I just looked, and there is no key for "Technisat" as such. There is, however, a key folder marked "B2C2, INC.," who manufactured the chip on which the tuner is based. I did not want to try to create new key manually without further guidance from you--that is, if you don't mind!

Are you sure you used the correct driver for that card?

http://www.nodevice.com/driver/company/technisat.html

Nasty