I have TV/Video capture card. When installing I get repeated pop up messages saying it that it is not "digitally signed" and if I proceed with the installation civilisation as we know it will end, fire and brimstone will rain down etc etc.
I may be getting another computer and want to put a capture card in that also.
Just to avoid Windows being a pain how can I find a list of "digitally signed" cards?
I know the obvious answer is ask Microsoft, but that is likely to be as productive as leaving a prayer in the Wailing Wall.
Btw OS is XP SP3, and the new system is likely to be XP also, but with 7 on the horizon compatability with that would be nice. I have not followed any threads in Windows 7 as I am only slightly more likely to get that than I am to get OS X, so I don't know if the "digital signing" is an issue with that 7, as it was in the early days of XP.

If it is not preventing you from installing your program, I would not worry about it. All that generally means is the card maker did not pay to get a digital certificate from a Certificate Authority (CA). There is no requirement to do so, and in many cases, no financial reason either.

I recommend getting the drivers only from a trusted source, such as the hardware maker. And of course, always scan for malware before opening or running any download (or attachment).

More information: Chapter 6 - Digital Certificates

Wow that was fast!
And thanks for clearing up the point. I had a printer do it to me on its first install then never again. With the capture card it is every time, and I have had to do several reinstalls lately.
I will happily ignore the warnings.
Thank you

What program is giving the warning? It seems you should be able to ignore it permanently .

It is the not a program per se, it is the driver for a Leadtek DTV 200 TV capture card.
It installs the digital TV side of things okay but the initial drivers seem to be what vexes Windows.
With the printer I had occasion to call Canon on a support question and asked the guy there about digital signing. He said that MS slug them about $10K per certificate and there would be no problem. And there hasn't, been a damn good little laser printer.
As far as the TV card goes the warnings pop up several times, but it is just an annoyance. I click Continue and it installs and does everything that is claimed for it. If you know how to stop that it would be nice, but only really necessary if it refused to install.

I meant what program is "reporting" the leadtek driver as unsigned?

Why is it necessary to keep re-installing this driver?

Oh, clarity needed, sorry.
I think that the warnings that pop up say either Windows or Microsoft strongly advise ... probably Microsoft, so I assume that Windows does not "recognise" the driver/s and pops up a general warning message. Sort of similar to when you install harware and Windows wants to take over and find drivers. When you tell it no, cos you have an installation disk it pops up with "a problem occurred during installation ... and your new xyz may not work properly." I think it resides in petulant.cab
The reason it has been reinstalled several times is I have had to do a number of Windows reinstalls. Since 11 June I think it is 6, but it is all a little hazy. It started due to malware that I was naïve, no say it, foolish to download. On some occasions I was able to identify a specific malware item, but not remove it; on others it was just the whole system was gummed up and it was obvious that there was something wrong which I was unable to pinpoint. EG Spybot usually takes 15 minutes to scan my system and it was taking 50 minutes, apps were becoming unstable, or just running slow, having to right click and select "play with WMP" before I could play a sound file. One that became unstable was the digital TV software, but other things went down before that. So I am not saying (or asking if) the lack of digital signing was the problem.
Due to not paying attention I made a wrong choice and did not format the C drive. It left all apps in place but not on the start menu. I had so many missing DLL issues and file not found messages that I did it all again the next day; that was a fun weekend! Not.
The whole period was a comedy of errors except I no longer saw the humor in it.
Things seem to be stable now, touch wood, and I really made the initial post just to see if there was any advantage (beyond the pop ups generated by Windows) in using a digitally signed application.
That was kind of long winded, but I hope it answers your question.

Okay, no problem. Thanks for clearing that up.