Msiexec Qr I Sophosoutlookaddinsetupmsi T1 Ec3 C1 I1 Work -

It looks like you’ve provided a command-line string for msiexec that seems intended to install or configure the Sophos Outlook Add-in silently or with specific parameters.

/i: This option is used to specify the installation of a product. The product to be installed is defined by an .msi package. msiexec qr i sophosoutlookaddinsetupmsi t1 ec3 c1 i1 work

/work: This seems to be another option being passed to msiexec. While not a standard Windows Installer option, in certain contexts, it might relate to a specific transform or property defined within the MSI or an associated installation script. It looks like you’ve provided a command-line string

• Missing dependencies (.NET frameworks).
• Per-user vs per-machine install mismatch (run elevated if installing per-machine).
• Version/bitness mismatch (32-bit add-in vs 64-bit Outlook).
• Disabled COM add-ins in Outlook (Trust Center settings).

EC=3: Often refers to the Encryption Class or a specific configuration level for email security modules. Missing dependencies (

C=1 and I=1: Additional configuration flags used to set initial behavior, such as automatic activation or inclusion of specific components. Official Deployment Resources

Sophos Phish Threat Add-in Installation: Details on deploying the manifest-based version for Microsoft 365 environments.