Does Mountain Lion (10.8.4) come with SharePoint plug-ins, or did I just install these? I did a custom installation of Microsoft Office 2011 for Mac on my MacBook Air running 10.8.4., but I changed my mind and decided to uninstall it.

I only installed Word, Excel, and Proofing Tools (English only).

I'm reading up on how to fully remove all the tidbits Microsoft sprinkled about, and I noticed a couple files on my system:

/Library/Internet Plug-Ins/SharePointBrowserPlugin.plugin
/Library/Internet Plug-Ins/SharePointWebKitPlugin.webplugin


I didn't include SharePoint in the installation, so I'm not sure that's where these files came from. It's a new machine, so the only alternative is that they were included with OS X 10.8.4, in which case I'm inclined to leave them be.

Does anybody know more about these files, where they likely came from?
Those two files are not part of Apple's installed software on 10.8.4.

I would chalk it up to Microsoft's installer.

You can research this in depth with a tool like Pacifist by http://www.charlessoft.com