If you get an error like “The module … owssvr.dll could not be loaded due to a configuration problem”, e.g. having to do with IIS and Sharepoint (including Microsoft Search Server 2010), try going into IIS manager, under Application Pools, and open up Advanced Settings for each of the items which may be malfunctioning. You’ll see “Enable 32-bit Applications”, and if that’s set to “True” on a 64-bit server, that’s the problem, set it to “False” and you’re probably in!