According to Microsoft, exception 0xC0000142 (STATUS_DLL_INIT_FAILED) means that initialization of the dynamic link library failed. It looks like some of dll's linked to e2010_bar are missing or not correctly registered.
1) In Windows 2012 environment .net framework 3.5 is not installed by default, so please install it manually through ServerManager on all windows 2012 machines and after that try again to configure Exchange integration. If configuration fails again, proceed with following steps.
2) Start command prompt at client testlabex04 (if possible also try on other machines), execute following commands and send us output:
"C:\Program Files\OmniBack\bin\e2010_bar.exe" -v
"C:\Program Files\OmniBack\bin\e2010_bar.exe" -chkconf
"C:\Program Files\OmniBack\bin\e2010_bar.exe" -getexchversion
3) If you receive error as expected in step 1, try to reinstall Microsoft Visual C++ 2008 and 2010 runtime (download: http://support.microsoft.com/kb/2019667) and after that try again commands from previous step, and if they are working, try again to configure Exchange integration
This case is still an open issue, no clear solution yet
