You are installing Acronis agent on a Windows XP or Windows Server SBS 2003.
Installation fails.
You check the MSI log and find that the operation has failed with error 3 or error 2: 1: 17:02:47.579: MSI_TRACE(tib_mounter): Launch "C:\Programs\Common Files\Acronis\TibMounter\TibMounterMonitor.exe" 1: 17:02:47.579: MSI_TRACE(tib_mounter): Failed to launch process: error=3 1: 17:02:47.579: MSI_TRACE(tib_mounter): PreAction handler failed with status 3.