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creating driver in 2000 -virtual driver?

By stuart_at_oz ·
Hi,

I have an old ISA controller card which I use to operate my garden sprinklers, that requires values to be written to specific memory ranges (adjustable via dip switches).

I have been able to do this under Win98 using one of the various DLL's that people have created to bypass the Win98 'soft' restriction on doing this - however this does not help with Windows 2000.

I need a driver that will allow me to make changes to this memory address (&H300)

I have found some virtual drivers, but I have not been able to figure out how to get them to work.

Does anyone have any info or pointers to enable me to do this?

Thanks!

Stu

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by p.j.hutchison In reply to creating driver in 2000 - ...

XP denies direct access to memory to ensure its stability and hardware abstraction. You need to use OS API functions to handle memory. This article may explain it more:
http://www.microsoft.com/technet/prodtechnol/winxppro/maintain/sp2mempr.mspx

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by stuart_at_oz In reply to creating driver in 2000 - ...

Thanks PJ, I am aware that NT/2000/XP denies direct access to memory, which is why I am after more info - where can I find more info on the Win2000 API's that would allow me to do this?

Also, that link points to an article about Data Execution Prevention for XP SP2 (which I was also aware of), I could not see anything that can help me achieve my aim under Windows 2000.

Thanks,
Stu

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