John Whitworth wrote:

> Hi,
>
> I recently upgraded to Windows 7 x64, from Windows Vista x86, and
> blindly (and stupidly) envisaged a smooth and transparent move whilst
> developing my 32-bit VB2008 application, which makes use of a PC/SC
> smart card reader, and the WinScard.dll.
>
> After much head scratching, I have now come to the conclusion that it
> is something to do with Windows 7 (rather than x86 to x64), even
> though the driver apparently supports it. The reason I believe that is
> because if I download the Vista-compatible diagnostic app for the
> smart card reader, and run it normally, it doesn't retrieve reader
> details. But if I run it with Vista SP2 compatibility, it is able to
> retrieve the reader details OK.
>
> Is there a way that I can use Vista SP2 compatibility for my project
> within VS2008, to test this theory?
>
> Thanks
>
> John

Have you tried building your application for x86 rather than "any CPU",
which is the default? Perhaps the diagnostic app you ran is built for x86.

--
Mike

* John Whitworth wrote, On 16-9-2009 21:06:

>
>
> "Family Tree Mike" <FamilyTreeMike@newsgroup> wrote in message
> news:uNTCamkNKHA.4580@newsgroup

>>
>> Have you tried building your application for x86 rather than "any
>> CPU", which is the default? Perhaps the diagnostic app you ran is
>> built for x86.

>
> No - it's a 64-bit diagnostic...

Then try setting the build to x64 explicitly.

--
Jesse Houwing
jesse.houwing at sogeti.nl