Sunday 28 September 2008

Where to find the Microsoft.Sharepoint.dll and other MOSS DLLs

If you're doing custom MOSS development on your local dev machine and deploying to a MOSS 2007 server environment, the relevant SharePoint DLLs should be referenced by your Visual Studio project. Since you haven't installed WSS/MOSS to your local environment, you need to copy those assemblies from the server. At a minimum, you'll probably need Microsoft.Sharepoint.dll.
Most DLLs will be located below C:\Program Files\Common Files\microsoft shared\Web Server Extensions\12\ISAPI. Alternatively--and for those DLLs not in the file system--you can extract all MOSS DLLs from the global assembly cache.

On your server, run the following command:

robocopy c:\windows\assembly\gac_msil c:\gac_extract /E

(replace robocopy with xcopy or download and install the Windows 2003 Resource Kit if you're not on Windows Server 2008)

The gac_extract folder will contain a hierarchical folder view of every assembly in your GAC; delve into the assembly folder you're after and copy across the DLL. To avoid keeping multiple copies of these DLLs in multiple projects, create a central local repository for the assemblies you require. Depending on the platforms you're targeting, you may want separate "referenced assemblies" repositories for RTM vs SP1 vs {your target combination of rollups and hotfixes}.

If you still can't find the assembly you're after, check \Inetpub\wwwroot\wss\VirtualDirectories\[site_name_or_port]\_app_bin

After adding a MOSS reference in VS, set the Copy Local property false. You can't run your MOSS project locally unless you're a Vista geek so there's no point copying the referenced assembly to your private bin folder--the assemblies are already installed on your server.


  1. Thank you so much. May Allah keep helping you for helping others.

  2. Thank you so much. May Allah fold himself up into a ball and take everyone who constantly includes him in common language into the nothingness he came from.

  3. Great, thank you very much ;)


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