Update PERC in Poweredge R720 / 32 bit drivers on 64 bit OS

I would like to update drivers and firmware in PERC in DELL Poweredge R720.

I download file: RAID_Driver_M20VR_WN32_5.2.220.64_A02.EXE

http://www.dell.com/support/drivers/uk/en/ukbsdt1/DriverDetails/Product/poweredge-r720?driverId=M20VR&osCode=WS8R2&fileId=3160710291&languageCode=en&categoryId=SF

 But this file is only for 32 bit systems.

 

There is information:

"Dell Update Packages in Microsoft Windows 32-bit format can be deployed on Microsoft 64-bit operating systems by implementing the WOW64 emulation applications"

 

How can i run that drivers in Windows Server 2008 R2 ? How use WOW64 emulation ? I have servers in production. I don't want experiments :)

 

Thanks

Sebastian