Direct access to disks and protected files from user-mode applications in Windows

GetDriverStatus function (Installer DLL)

Installer DLL     See also    


Returns information about the installed driver


    BOOL __stdcall GetDriverStatusA( const char * ProgramName, BOOL *DriverInstalled, unsigned long *FileVersionHigh, unsigned long *FileVersionLow);
    BOOL __stdcall GetDriverStatusW( const unsigned short* ProgramName, BOOL *DriverInstalled, unsigned long *FileVersionHigh, unsigned long *FileVersionLow);


  • ProgramName - the ProgramName string that identifies installation of the driver by your application
  • DriverInstalled - on return contains true if the driver has been installed or false otherwise.
  • FileVersionHigh - on return contains driver file version (high-order values)
  • FileVersionLow - on return contains driver file version (low-order values)

Return values

TRUE / true if the function succeeded or FALSE / false if the function failed.


Use this method to get information about the installed driver. ProgramName is used to distinguish between installations of the driver made by different applications and to prevent the situation when the driver is installed by two applications and further deinstallation of one of them removes the driver.

FileVersionHigh and FileVersionLow both contain two values - one in the upper 16 bits and the other in the lower 16 bits.
For example for

FileVersionHigh - 0x00020020 = "2.32"
FileVersionLow - 0x0006001C = "6.28"

See also

GetDriverVersion     InstallDriver     UninstallDriver    

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