Drivers for all SDMS™ 4.xx.xx products from SCSI2 to Ultra160 SCSI are part of the operating system. There are no upgrades available at this time. Drivers that are part of the OS that support LSI Logic chipsets include;* symc810.sys v4.00.01 for HBA's using the 53C810/A SCSI2 chipsets symc8xx.sys v4.15.02 for HBA's using the LSI53C860, LSI53C875, LSI53C876, and LSI53C895** Ultra SCSI chipsets. sym_hi.sys v4.15.02 for HBA's using the LSI53C895A, and LSI53C896 Ultra2 chipsets. sym_u3.sys v5.07.02A for HBA's using the LSI53C1000 and LSI53C1010 Ultra160 chipsets. * OEM manufactured SCSI HBA's are not tested at LSI Logic. Refer to the OEM manufacturer for compatibility to WinXP. ** The LSI53C895 is rated Ultra2.