Thanks to your help, I found out more
(Default) REG_SZ (value not set)

CDBurn REG_SZ {fbeb8a05-beee-4442-804e-409d6c4515e9}
http://www.systemlookup.com/O21/242-...ELL32_dll.html

PostBootReminder REG_SZ {7849596a-48ea-486e-8937-a2a3009f31a9}
http://www.systemlookup.com/O21/241-...ELL32_dll.html

SysTray REG_SZ {35CEC8A3-2BE6-11D2-8773-92E220524153}
http://www.systemlookup.com/O21/194-...bject_dll.html

WebCheck REG_SZ {E6FB5E20-DE35-11CF-9C87-00AA005127ED}
http://www.systemlookup.com/O21/222-...check_dll.html

WPDShServiceObj REG_SZ {AAA288BA-9A4C-45B0-95D7-94D524869DB5}
http://www.systemlookup.com/O21/236-...ceObj_dll.html