BPC SP13 Error launching office client from web

Hello Experts

We have a user who is receiving the following error when attempting to launch the EPM add-in from both the homepage of the web interfact and BPF screen.  He receives:

Error launching office client: could not be found. (Exception from HRESULT: 0x80030002 (STG_E_FILENOTFOUND))

I have checked his install and he is running the standard versions of software:

- ie9 256 bit

- MS Office 2010 version: 14.30.7128.5000 (32 bit)

- EPM 10.0 SP13

Has anyone seen this error before ?

I have tried re-installing both the EPM add-in and MS Excel but to no avail.

Thanks

Ian