pub unsafe extern "system" fn RegisterLicenseKeyWithExpiration(
licensekey: PCWSTR,
validityindays: u32,
status: *mut LicenseProtectionStatus
) -> HRESULT
pub unsafe extern "system" fn RegisterLicenseKeyWithExpiration(
licensekey: PCWSTR,
validityindays: u32,
status: *mut LicenseProtectionStatus
) -> HRESULT