Below, you can find a sorted list (following the order of application) of all Group Policy CSE (Client Side Extensions) taken from the site of Mark Heitbrink - MVP Group Policy.
All extensions can be found under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\GPExtensions.
Order Client Side Extension (CSE) Name File GP GUID Background Refresh
1 Registry userenv.dll {35378EAC-683F-11D2-A89A-00C04FBBCFA2} Yes
2 Wireless Group Policy gptext.dll {0ACDD40C-75AC-47ab-BAA0-BF6DE7E7FE63} Yes
3 Group Policy Environment gpprefcl.dll {0E28E245-9368-4853-AD84-6DA3BA35BB75} Yes
4 Group Policy Local Users and Groups gpprefcl.dll {17D89FEC-5C44-4972-B12D-241CAEF74509} Yes
5 Group Policy Device Settings gpprefcl.dll {1A6364EB-776B-4120-ADE1-B63A406A76B5} Yes
6 Folder Redirection fdeploy.dll {25537BA6-77A8-11D2-9B6C-0000F8080861} Yes
7 Microsoft Disk Quota dskquota.dll {3610eda5-77ef-11d2-8dc5-00c04fa31a66} No
8 Group Policy Network Options gpprefcl.dll {3A0DBA37-F8B2-4356-83DE-3E90BD5C261F} Yes
9 QoS Packet Scheduler gptext.dll {426031c0-0b47-4852-b0ca-ac3d37bfcb39} Yes
10 Scripts gptext.dll {42B5FAAE-6536-11d2-AE5A-0000F87571E3} Yes
11 Process Group Policy For Zone Map / Internet Explorer iedkcs32.dll {4CFB60C1-FAA6-47f1-89AA-0B18730C9FD3} Yes
12 Group Policy Drive Maps gpprefcl.dll {5794DAFD-BE60-433f-88A2-1A31939AC01F} No
13 Group Policy Folders gpprefcl.dll {6232C319-91AC-4931-9385-E70C2B099F0E} Yes
14 Group Policy Network Shares gpprefcl.dll {6A4C88C6-C502-4f74-8F60-2CB23EDC24E2} Yes
15 Group Policy Files gpprefcl.dll {7150F9BF-48AD-4da4-A49C-29EF4A8369BA} Yes
16 Group Policy Data Sources gpprefcl.dll {728EE579-943C-4519-9EF7-AB56765798ED} Yes
17 Group Policy Ini Files / INI gpprefcl.dll {74EE6C03-5363-4554-B161-627540339CAB} Yes
18 Windows Search Group Policy / WDS srchadmin.dll {7933F41E-56F8-41d6-A31C-4148A711EE93} Yes
19 Security scecli.dll {827D319E-6EAC-11D2-A4EA-00C04F79F83A} Yes
20 Deployed Printer Connections gpprnext.dll {8A28E2C5-8D06-49A4-A08C-632DAA493E17} Yes
21 Group Policy Services gpprefcl.dll {91FBB303-0CD5-4055-BF42-E512A681B325} Yes
22 Internet Explorer Branding / Internet Explorer iedkcs32.dll {A2E30F80-D7DE-11d2-BBDE-00C04F86AE3B} Yes
23 Group Policy Folder Options gpprefcl.dll {A3F3E39B-5D83-4940-B954-28315B82F0A8} Yes
24 Group Policy Scheduled Tasks gpprefcl.dll {AADCED64-746C-4633-A97C-D61349046527} Yes
25 Group Policy Registry / Registry gpprefcl.dll {B087BE9D-ED37-454f-AF9C-04291E351182} Yes
26 EFS recovery scecli.dll {B1BE8D72-6EAC-11D2-A4EA-00C04F79F83A} Yes
27 802.3 Group Policy dot3gpclnt.dll {B587E2B1-4D59-4e7e-AED9-22B9DF11D053} Yes
28 Group Policy Printers gpprefcl.dll {BC75B1ED-5833-4858-9BB8-CBF0B166DF9D} Yes
29 Group Policy Shortcuts gpprefcl.dll {C418DD9D-0D14-4efb-8FBF-CFE535C8FAC7} Yes
30 Microsoft Offline Files cscobj.dll {C631DF4C-088F-4156-B058-4375F0853CD8} Yes
31 Software Installation appmgmts.dll {c6dc5466-785a-11d2-84d0-00c04fb169f7} Yes
32 IP Security polstore.dll {e437bc1c-aa7d-11d2-a382-00c04f991e27} Yes
33 Group Policy Internet Settings / Internet gpprefcl.dll {E47248BA-94CC-49c4-BBB5-9EB7F05183D0} Yes
34 Group Policy Start Menu Settings gpprefcl.dll {E4F48E54-F38D-4884-BFB9-D4D2E5729C18} Yes
35 Group Policy Regional Options gpprefcl.dll {E5094040-C46C-4115-B030-04FB2E545B00} Yes
36 Group Policy Power Options gpprefcl.dll {E62688F0-25FD-4c90-BFF5-F508B9D2E31F} Yes
37 Group Policy Applications gpprefcl.dll {F9C77450-3A41-477E-9310-9ACD617BD9E3} Yes
38 Enterprise QoS gptext.dll {FB2CA36D-0B40-4307-821B-A13B252DE56C} Yes
