Re: [Algorithms] Timing problems

[Robert W. <fo...@ro...>]

Hi Jan,

I've got a Comodo code signing certificate renewed every year for my application 
installer signing.

Just tested it on one of the .sys files for 0.A.D. and it signed it successfully 
and it says it is digitally signed when I right click on properties.

Not sure how to test to see if the certificate I used is enough to let it be 
installed okay.

I'm running Windows 7 64 bit here though, so ideal for testing if it does 
install okay if you can tell me what to do to test that.

Presumably once installed then the application doesn't need to be run with admin 
privileges to access it?

Yes it is absolutely fine if it is read only for apps like mine that only need 
to read the HPET counter. 

Yes I'm happy to work together with you on this if it is something I have the 
ability to do and if I can find the time to do it. If it is something that can 
be done in a few days of work then I can surely find the time for it one way or 
another. Longer projects can be harder to find time for.

I have no experience of writing drivers though, also don't use c++, I write in 
low level Windows C most of the time. But if it is just a case of removing 
functionality and recompiling maybe it is something I can do? 

I use Visual C++ 6.0 for my programming which is probably not new enough for 
this? I use the Visual Studio family of free compilers as well, but only for 
debugging from time to time to take advantage of a few debug capabilities they 
have that aren't in Visual C++ 6.0.

Simplest though is just to code sign the existing version if that works, for 
now. I don't really see how it is going to be a risk because to access the 
driver - wouldn't an application have to be installed on your computer anyway? 
Which means that the user has given it admin permissions to install whatever it 
likes anyway, and if it does something malicious, surely it would do it directly 
and e.g. install a known virus or spyware, rather than try to access a driver to 
address the HPET counter? Or am I missing something there?

Though advantage if there is one less thing for the user to have to accept 
during install. 

Also, how do you use it? I've never installed a driver or interfaced directly 
with a driver. Is there example code in the zip?

Thanks,

Robert