Audio Driver Problem in Win XP SP3

The problem is in the original driver CD notebook is not no patch audio driver for XP SP3, try to check on folder,

DRIVER/AUDIO/XP/MSHDQFE/WIN2K_XP/US 

 there is only 3 files  

• KB888111XPSP1.EXE,  
• KB888111XPSP2.EXE and  
• KB888111W2KSP4.EXE.  

while for SP3 does not exist.
then how to add audio drivers Win XP SP3 into the computer? if we install Win XP SP3, Microsoft has included the driver backup into drive C: \, and this step-by-step how to put it

• Right-click My Computer, select Properties.
• Select the Hardware tab, click the Device Manager button.
• Click the + (plus) that there is a yellow exclamation mark (in this case the PCI bus).
• Right-click the menu below, click Update Driver.
• Select No, not this time, then Next.
• Select Install from a list or specific location (Advanced). Next.
• Activate the check box "include this location in the search". Click the Browse button.
• Search location in C: / WINDOWS / inf. Click OK.
• Click Next, drivers will be installed.
• When finished restart windows.

  hopefully help.