So for a while I thought you were installing the EV 9 addin, which isn't compatible with Outlook 2010 :
\\sasa19\Outlook Add-In 9.0\Symantec Enterprise Vault HTTP-Only Outlook Add-in-en.msi
As in your install folder says 9.0... but later I see :
Property(S): ARPCOMMENTS = Symantec Enterprise Vault HTTP-only Outlook Add-In (en) Build 9.0.1.1073
So that's okay.
And I can see it's Outlook 2010 from this :
Property(C): OUTLOOK_2003_OR_LATER = C:\Program Files\Microsoft Office\Office14\outlook.exe
Property(C): OUTLOOK_2007_OR_LATER = C:\Program Files\Microsoft Office\Office14\outlook.exe
Property(C): OUTLOOK_2010_BITNESS_X86 = x86
Property(C): OUTLOOK_2010_BITNESS_X64 = x86
For 100% completeness, can you tell me from the log you just created :-
a/ Is it Windows 7, or Windows 7 SP 1?
b/ Is it 64 bit or 32 bit?
c/ Is it Outlook 2010 ?
d/ Is it 64 bit or 32 bit?
e/ Did anything get created in c:\program files\enterprise vault