How do I load COM Add-Ins "Windows Search Email Indexer"? It say that it is unloaded and I am unable to run searches of my email inboxes in Outlook 2010. When I check it it will not load. The file "C:\Windows\System32\mssphtb.dll" which it points to does show in my computer. This seemed to happen after I ran Registry Mechanic for another problem. This program wreaked havoc on my computer.