The "16.0" designation refers to the version number corresponding to . The file in question is typically Microsoft.Outlook.tlb or interop assemblies residing within the Office installation folders.
Method 2: Enabling the Reference in VBA (Excel, Access, Word)
Instead of searching for a download, focus on repairing or installing the correct Office version.
Microsoft Outlook 16.0 object Library reference - Stack Overflow microsoft outlook 16.0 object library dll download
With olMail .To = "someone@example.com" .Subject = "Test" .Body = "Hello from VBA" .Send End With
C:\Program Files (x86)\Microsoft Office\root\Office16\MSOUTL.OLB
If you’ve searched for , you’re likely a developer or power user trying to automate Outlook from another application (like Excel, Access, or a custom .NET program). You may have encountered a missing reference error or a broken script. The "16
The library is installed when you install a version of Office that includes Outlook (2016, 2019, 2021, or Microsoft 365). You do not need to perform any extra steps. Make sure:
When you see an error referencing this library, it usually means your system cannot locate this file, or t The Danger of Downloading DLL or OLB Files Online
This library contains the definitions for Outlook objects such as: Microsoft Outlook 16
By switching to Late Binding, you eliminate the need for your users to have the exact Microsoft Outlook 16.0 Object Library installed, making your tools significantly more stable and easier to distribute.
The file you’re looking for is typically (Object Library) or related runtime DLLs like outllib.dll or outlvba.dll . These files are not standalone downloads – they are core components of Microsoft Office/Outlook itself .