WdfCoInstaller01011.dll issue RRS feed

  • Question

  • I wrote a KMDF driver  in VS 2012 on Win7 64 bit. The Platform Toolset in the project is WindowsKernelModeDriver8.0. So in the INF file built as part of the driver project, the kmdf co-installer is WdfCoInstaller01011.dll. But this dll is not present in my system. But WdfCoInstaller01009.dll is present in the WDK install folder. I am able to install the driver using WdfCoInstaller01009.dll in a target machine. But where can I get WdfCoInstaller01011.dll? Why it is not present? Is the co-installer DLL really needed to install the driver in another target machine.? I understand that this dll is needed only of the KMDF version is the target PC needs to be updated.
    • Edited by its_me_here Friday, January 3, 2014 3:03 PM
    Friday, January 3, 2014 3:02 PM


All replies

  • You need to go to and get the components and include them in your install package.

    Don Burn Windows Filesystem and Driver Consulting Website: Blog:

    Friday, January 3, 2014 3:10 PM
  • Thank you Don. I downloaded the con-installer dll and now my installation is working fine. I tried on Windows x64 platform. But when I tried to install my driver on x86 platform (Win7 2 bit), the installation is not fully successful. Though the driver is installed it is not correctly intialised. When I try to run devon.exe on the inf file corresponding to the x-86 version with the x86 version of the co-installer, the installer displays a message as below:

    But sometimes it is seen that the driver is correctly installed and we are able to work with the driver. Why is this so? Is there any stability issue? I got this dll from the x86 installation location of wdf installer( C:\Program Files (x86)\Windows Kits\8.0\Redist\wdf\x86\WdfCoInstaller01011.dll )

    Friday, January 10, 2014 12:51 PM
  • No known install issues. I don't think you copied over the right architecture version of the file. What does say?

    d -- This posting is provided "AS IS" with no warranties, and confers no rights.

    Saturday, January 11, 2014 7:46 AM