System Writer Missing

Hi,

I have just deployed a SBS 2008, DC, exchange.

I have arcserve r12.5 running and it fails on the system state.

I have researched the error and when performing the following command: vssadmin list writers
the system writer does not appearing.

I have attempted to change the permissions on the winsxs file and this has not had any affect.
I have restarted the server multiple times.

I am receving the following error.

[ The Cryptographic Services service failed to initialize the VSS backup "System Writer" object.

Details:
System Writer object failed to initialize VSS.

System Error:
Access is denied. ]

i have performed the following:

Takeown /f %windir%\winsxs\filemaps\* /a  
pause  
icacls %windir%\winsxs\filemaps\*.* /grant "NT AUTHORITY\SYSTEM:(RX)"  
pause  
icacls %windir%\winsxs\filemaps\*.* /grant "NT Service\trustedinstaller:(F)"  
pause  
icacls %windir%\winsxs\filemaps\*.* /grant BUILTIN\Users:(RX)  
pause  
net stop cryptsvc  
pause  
net start cryptsvc  
pause

and

cd c:\windows\system32
pause
net stop vss
regsvr32 ole32.dll
regsvr32 vss_ps.dll
Vssvc /Register
regsvr32 /i swprv.dll
regsvr32 /i eventcls.dll
regsvr32 es.dll
regsvr32 stdprov.dll
regsvr32 vssui.dll
regsvr32 msxml.dll
regsvr32 msxml3.dll
regsvr32 msxml4.dll
pause
net start vss

Thanks.