Microsoft Office 2003 Primary Interop Assemblies
The 11.0.8404 version of Microsoft Office 2003 Primary Interop Assemblies is provided as a free download on our website. The Microsoft Office 2003 Primary Interop Assemblies installer is commonly called EXCEL.EXE, WINWORD.EXE, WINPROJ.EXE, VISIO.EXE or SETLANG.EXE etc.
This free program was originally created by Microsoft. The program lies within System Utilities, more precisely File Managers. The following versions: 11.0 and 1.0 are the most frequently downloaded ones by the program users. This free PC tool can work with the following extensions: ".rqy", ".xla" and ".xlk".
From the developer:
In Microsoft Office 2003, you can work with COM objects exposed by the Office applications by using a primary interop assembly (PIA).
You can find details about PIAs and interop assemblies and how to program against the interfaces and classes exposed by Office 2003 in managed code from a number of articles on the subject.
You may want to check out more software, such as Microsoft Office 2010: Primary Interop Assemblies Redistributable, Microsoft Office Sounds or Microsoft Office File Validation Add-In, which might be related to Microsoft Office 2003 Primary Interop Assemblies.