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How to: Install Office Primary Interop Assemblies

You must install the Microsoft Office primary interop assemblies (PIAs) in the global assembly cache of your development computer before you can perform certain development tasks. Typically, the PIAs are installed automatically when you install Office on the development computer. However, in some cases you might need to install the PIAs separately. For more information, see Configuring a Computer to Develop Office Solutions and Office Primary Interop Assemblies.

You can install the complete set of PIAs in the global assembly cache in two ways:

  • Install them when you install Office.

  • Install them from the redistributable PIA package.

NoteNote

You must be an administrator on the development computer to install the .NET Framework and the Office PIAs.

To install the PIAs when you install Office

  1. Ensure that the .NET Framework 1.1 or a later version is installed if you are installing the 2007 Microsoft Office system, or the .NET Framework 2.0 or a later version is installed if you are installing Microsoft Office 2010. 

  2. Install Microsoft Office and make sure that the .NET Programmability Support feature is selected for the applications you want to extend (this feature is included in the default installation).

To install the PIAs by using the redistributable package

  1. Ensure that the .NET Framework 1.1 or a later version is installed if you are installing the PIAs for the 2007 Microsoft Office system, or the .NET Framework 2.0 or a later version is installed if you are installing the PIAs for Microsoft Office 2010.

  2. Download one of the following redistributable packages:

  3. Follow the instructions in the download page to install the primary interop assemblies.

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Correct link to download PIA for office 2010


http://www.microsoft.com/download/en/details.aspx?id=3508
When will Office 2010 PIAs be available?
It has been over a month since Office 2010 shipped out. When will be the Office 2010 PIAs available for download? Microsoft, can you please tell us a date when these will be available?

Missing link for PIA's 2010 office
Almost June to come and Still missing link to the PIA's for 2010 Office