Outlook 2013 isn't on the compatibility list in the release notes:
And the message is completely right
if this helps, please rate
I see everyone has covered pretty much the root cause. My suggestion is to try on 32 bit rather than 64 bit platform if that is the case and check if you get the same behaviour, which would be likely.
-D a v i d
Did anyone get this working on Win 8.1 x64 and Office 2013? I get an error saying that Outlook can't be installed automatically and must be installed manually. I un-installed Office 2013 that was originally installed as click and run. I re-installed from DVD but VMO install still fails with the mentioned error. the compatibility matrix shows that both office 2013 and Win 8 x64 is supported.
I just installed on Win 8.1 (64) with Office 2013. At first I received the same message that you did. I was installing the x64 version, but then I remembered that I had changed from x64 Office to x32 office so that the CUCM bulk load bat would work. Installing the x32 version of viewmail matching my Office/Outlook version worked.