DirectX June 2010 is also Highly Recommended.

Download DirectX Redist (June 2010) from Official Microsoft ...

Download file, Extract to a folder,  RUN DXSETUP.EXE as Administrator.

The Analog Devices AD198X codec does have WHQL drivers from the Microsoft Catalog.

Architecture: X86
Classification: Drivers
Supported products: Windows 7 , Windows 8
Supported languages: all
Company: Analog Devices
Driver Manufacturer: Analog Devices, Inc.
Driver Class: Sound
Driver Model: SoundMAX Integrated Digital Audio
Driver Provider: Analog Devices


microsoft catalog Analog Devices 5.12.1.7010   32 BIT

catalog.update.microsoft.com/.../ScopedViewRedirect.aspx

microsoft catalog Analog Devices 5.12.2.7010   64 BIT

catalog.update.microsoft.com/.../ScopedViewRedirect.aspx

pci\ven_8086&dev_266e&subsys_01a11028
pci\ven_8086&dev_24d5&subsys_01761028
pci\ven_8086&dev_27de&subsys_01bc1028
pci\ven_8086&dev_24d5&subsys_01741028
pci\ven_8086&dev_24d5&subsys_01681028
pci\ven_8086&dev_24d5&subsys_01561028
pci\ven_8086&dev_266e&subsys_01791028
pci\ven_8086&dev_24d5&subsys_03021028
pci\ven_8086&dev_24d5&subsys_019d1028
pci\ven_8086&dev_27de&subsys_01ad1028
pci\ven_8086&dev_266e&subsys_01811028
pci\ven_8086&dev_24d5&subsys_01621028
pci\ven_8086&dev_266e&subsys_01901028
pci\ven_8086&dev_266e&subsys_01991028
pci\ven_8086&dev_266e&subsys_01771028
pci\ven_8086&dev_24d5&subsys_01691028
pci\ven_8086&dev_24d5&subsys_01511028
pci\ven_8086&dev_24d5&subsys_01d51028
pci\ven_8086&dev_24d5&subsys_01571028
pci\ven_8086&dev_266e&subsys_017b1028
pci\ven_8086&dev_24d5&subsys_017a1028
pci\ven_8086&dev_266e&subsys_01751028
pci\ven_8086&dev_266e&subsys_01781028
pci\ven_8086&dev_24d5&subsys_01541028
pci\ven_8086&dev_24d5&subsys_01551028

Supported Update IDs

03ae3b46-f06f-4f4f-b76a-4c960993b94c
06362563-621c-4630-87aa-1213f176df1f
0cf8bc26-892f-42fc-8757-a2dd83738b4a
11c08435-a2d1-4463-b5b9-43376f56de76
14b19087-24fb-4a67-bdef-00045f0c5c8a
1958c05a-2a61-4acc-bed9-cfa612946126
1e4ec816-d9f6-44b4-af7f-e3f12e395466
1f85a63a-592b-4929-ab13-404a36f8eb4f
285f6780-afaf-4ad6-b9af-64c0ef376a4d
33065cca-c120-430d-b764-5ece296e6a5e
3d594402-0ce5-4e3f-8cb7-4d41fa14e17a
4016e98b-38d6-45dc-aa96-e5c6c4b8afa5
41fc584a-ba80-4eea-960a-f33ff764f2d7
53899004-f959-4e14-9f10-8a0f0c0914ba
542a4956-c6e3-4279-a19b-00c55045a949
584ec490-d422-42c6-a71c-f1c9967953b7
6864f06b-1677-41bb-be75-1aba02a61dd0
6c81fed7-57a9-4d9e-b239-2f8679b43cae
723320af-da7b-4217-a0ac-b047612382a0
7f98d187-abc6-40cc-bb47-0d89c690c89f
89886cd9-dbd2-49cf-9d81-41dfd2e3c4e5
bf0b1225-20cf-4be7-a0f6-d854183780f1
c3eb318a-fe4f-4e0c-8ef9-56a56e2cac48
c8cf0039-d33e-4bc4-991a-f9e1363d4660
cf699d9c-8ea7-4b14-b5df-29ee34d023b0
VISTA Drivers

R145551.EXE         32 BIT

R145149.EXE          64 BIT

Description Supported OS Download
Analog Devices ADI 198x Integrated Audio, v.5.12.2.7010, A02 R14549.EXE Windows Vista 64-bit Download
Analog Devices ADI 198x Integrated Audio, v.5.12.01.7010, A25  R145551.EXE Windows Vista 32-bit Download
Analog Devices ADI 198x Integrated Audio, v.5.12.02.5280, A01  R96951.EXE Windows XP x64 Download
Analog Devices ADI 198x Integrated Audio, v.5.12.01.5246, A23  R97809.EXE Windows XP
Windows 2000
Download

R145551.EXE         32 BIT

R145149.EXE          64 BIT

Systems
Dimension Desktop 2400
Dimension Desktop 3000
Dimension Desktop B110
OptiPlex 170L
OptiPlex GX270 / GX270N
OptiPlex GX280
OptiPlex GX520
OptiPlex GX620
OptiPlex SX270 / SX270N
OptiPlex SX280
Precision 360 / 360N
Precision 370
Precision 450
Precision 470
Precision 650
Precision 670