REGEDIT4

[HKEY_LOCAL_MACHINE\Software\CLASSES\.htc]
"Content Type"="text/x-component"

[HKEY_LOCAL_MACHINE\Software\CLASSES\MIME\Database\Content Type\text/x-component]
"CLSID"="{3050f4f8-98b5-11cf-bb82-00aa00bdce0b}"
"Extension"=".htc"

[HKEY_LOCAL_MACHINE\Software\CLASSES\CLSID\{3050f4f8-98b5-11cf-bb82-00aa00bdce0b}]
@="Microsoft Html Component"

[HKEY_LOCAL_MACHINE\Software\CLASSES\CLSID\{3050f4f8-98b5-11cf-bb82-00aa00bdce0b}\InProcServer32]
@="C:\\WINDOWS\\SYSTEM\\MSHTML.DLL"
"ThreadingModel"="Apartment"