Frequently asked questions ============================ **Unable to link with the static build of nfapi.lib, the linker shows "unresolved external symbol" errors.** Define a symbol _NFAPI_STATIC_LIB in project configuration or insert the following string before including nfapi.h: #define _NFAPI_STATIC_LIB 1 **Unable to programmatically install the driver from 32-bit process on 64-bit Windows.** The driver is always saved to windows\\SysWOW64\\drivers instead of windows\\system32\\drivers and can't start. This is a feature of 64-bit Windows called virtualization. It is applied to 32-bit applications. Windows redirects file system and registry calls to different locations, used as an alternate view of the standard folders and registry keys: http://msdn.microsoft.com/en-us/library/aa384249%28VS.85%29.aspx The following ways can be used to install the driver properly on x64: - Call API function Wow64DisableWow64FsRedirection from 32-bit installer before saving the driver to windows\\system32\\drivers: http://msdn.microsoft.com/en-us/library/aa365743(VS.85).aspx It is possible to do this using System plug-in in NSIS, and using direct API call in other installers. - Use 64-bit installer on x64. For example Windows Installer (MSI) allows to avoid all compatibility problems.