I have uninstalled CAS in exchange 2010 to resolve an issue i am having with OWA, the uninstall went fine but when i go to reinstall through control panel / program / program features i get an error and it fails. I have also tried from the DVD and from a fresh download of Exchange 2010 SP1 from Microsoft.
Below is the error.
Summary: 6 item(s). 2 succeeded, 1 failed.
Elapsed time: 00:00:22
Elapsed Time: 00:00:00
Elapsed Time: 00:00:16
Copy Exchange Files
Installing product D:\CMPNENTS\EXCHANGE14_SP1
erver.msi failed. Fatal error during installation. Error code is 1603.
Fatal error during installation
Click here for help... http://technet.microsoft.com/en-US/library/ms.exch.err.default(EXCHG.141).aspx?v=184.108.40.206&e=ms.exch.err.Ex96BCEE&l=0&cl=cp
Elapsed Time: 00:00:05
Client Access Role
I have read a lot of posts and they are for 2007 and say to reinstall with the lastest server pack but SP1 is the latest for Exchange 2010.