DIFxAPI for 32 and 64 bit OS
in [Device Drivers]
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From: JY on 12 Mar 2010 10:14 Hi, I'm use the DriverPackagePreinstall() API in my application to pre-install a driver. This works on 32 bit systems but not on 64-bit systems. I get a ERROR_IN_WOW64 on 64-bit systems. I know that the DIFxAPI has different versions of the DLL for 32 and 64 bit, but when I try to use any of those it causes a crash. I believe to use the 64-bit DLL, I would also have to link with a different lib file, but there are quite a few of them in when WinDDK is installed, so which do I use for Vista 64-bit? I tried using some 64-bit ones but it gave me some linker errors. Also, do I have to build separate EXEs to support 64-bit and 32-bit systems? TIA, JY
From: Mike [MSFT] on 12 Mar 2010 18:15 > Also, do I have to build separate EXEs to support 64-bit and 32-bit > systems? The answer is yes and that is probably the key to your issue. -Mike "JY" <sd(a)nospamgroup.com> wrote in message news:CA3E0143-8341-444F-B689-2D17D90A2E0E(a)microsoft.com... > Hi, > > I'm use the DriverPackagePreinstall() API in my application to pre-install > a > driver. This works on 32 bit systems but not on 64-bit systems. I get a > ERROR_IN_WOW64 on 64-bit systems. > > I know that the DIFxAPI has different versions of the DLL for 32 and 64 > bit, > but when I try to use any of those it causes a crash. I believe to use the > 64-bit DLL, I would also have to link with a different lib file, but there > are quite a few of them in when WinDDK is installed, so which do I use for > Vista 64-bit? I tried using some 64-bit ones but it gave me some linker > errors. > > Also, do I have to build separate EXEs to support 64-bit and 32-bit > systems? > > TIA, > JY
From: Tim Roberts on 14 Mar 2010 21:53 JY <sd(a)nospamgroup.com> wrote: > >I know that the DIFxAPI has different versions of the DLL for 32 and 64 bit, >but when I try to use any of those it causes a crash. I believe to use the >64-bit DLL, I would also have to link with a different lib file, but there >are quite a few of them in when WinDDK is installed, so which do I use for >Vista 64-bit? I tried using some 64-bit ones but it gave me some linker >errors. A 64-bit DLL can only be linked with a 64-bit EXE. You'll have to build it both ways. -- Tim Roberts, timr(a)probo.com Providenza & Boekelheide, Inc.
From: JY on 16 Mar 2010 11:50 What about the lib files to be used when building a 64-bit EXE? Like I said, there are different libs available even for 64 bit AMD processors. How do I know which lib to link with? Is there any documentation at all available on the usage? Thanks, Jy "Mike [MSFT]" wrote: > > Also, do I have to build separate EXEs to support 64-bit and 32-bit > > systems? > > The answer is yes and that is probably the key to your issue. > > -Mike > > "JY" <sd(a)nospamgroup.com> wrote in message > news:CA3E0143-8341-444F-B689-2D17D90A2E0E(a)microsoft.com... > > Hi, > > > > I'm use the DriverPackagePreinstall() API in my application to pre-install > > a > > driver. This works on 32 bit systems but not on 64-bit systems. I get a > > ERROR_IN_WOW64 on 64-bit systems. > > > > I know that the DIFxAPI has different versions of the DLL for 32 and 64 > > bit, > > but when I try to use any of those it causes a crash. I believe to use the > > 64-bit DLL, I would also have to link with a different lib file, but there > > are quite a few of them in when WinDDK is installed, so which do I use for > > Vista 64-bit? I tried using some 64-bit ones but it gave me some linker > > errors. > >
From: Tim Roberts on 17 Mar 2010 00:57
JY <sd(a)nospamgroup.com> wrote: > >What about the lib files to be used when building a 64-bit EXE? >Like I said, there are different libs available even for 64 bit AMD >processors. There are exactly three sets of libraries. The x86 libraries are for use with 32-bit apps. The ia64 libraries are for use with 64-bit Itanium processors, which no one really has in real life. ;) The amd64 libraries are for all of the 64-bit processors you are likely to find in the wild -- AMD64 and EM64T (or Intel64, as they are now calling it). >How do I know which lib to link with? Is there any documentation >at all available on the usage? On the usage of what? -- Tim Roberts, timr(a)probo.com Providenza & Boekelheide, Inc. |