Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))
Written by Oz Warren Thursday, 18 February 2010 14:40
If you get this lovely message:
Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))
when you're trying to deploy a Web Part to SharePoint using Visual Studio, go to the start menu and choose run/services.msc and disable the indexing service. It worked for me.