Help! RS did not initialize on install and Rsactivate doesn't work

Hi,
When I installed RS, I received an error at the end stating that the server
could not be initialized and that I'd have to do it manually. So I tried
running the following and received the resulting error...
Rsactivate.exe -c "C:\Program Files\Microsoft SQL Server\MSSQL\Report
g Services\ReportServer\RSReportServer.config"
Failure starting the web service:
File or assembly name ReportingServicesNativeClient, or one of its dependencie
was not found.
Please help! Thanks.Please someone help on this one.