Microsoft Outlook 16.0 Object Library is not available as a standalone download. It is a system file, typically named MSOUTL.OLB
Alternative: C:\Program Files (x86)\Microsoft Office\Office16\MSOUTL.OLB How to Add the Reference in VBA Open your Office application (e.g., Excel or Word). Press Alt + F11 to open the Visual Basic Editor. Go to Tools > References. microsoft outlook 16.0 object library dll download
The library is a COM (Component Object Model) interface that allows external applications, such as Excel or Word, to interact with and control Microsoft Outlook via Visual Basic for Applications (VBA). It is automatically installed when the "Classic" Outlook application is installed on a Windows system. Microsoft Learn Locating the Library Locally Microsoft Outlook 16
If you need to manually reference the file in a development environment like the VBA Editor, you can find it at the following common installation paths: Error: "The file is missing" or "The library is not found"
Installation Requirement: The library only appears if the Classic Outlook application is installed on your machine. Users on Microsoft Learn note that editions like "Home & Student" do not include Outlook, and thus will not have this library.
| Error | Likely Cause | Fix |
|-------|--------------|-----|
| “Cannot find Microsoft Outlook 16.0 Object Library” | Office missing or corrupt | Install/repair Office |
| “Class not registered” | Office install issues | Run Regsvr32 on outlvba.dll (found in Office root) |
| “Error loading MSOUTL.OLB” | Reference path broken | Remove and re-add the reference |
Downloading and installing the Microsoft Outlook 16.0 Object Library DLL is a straightforward process. Here are the steps: