If you are implementing IE Add-On blocking via the registry or GPO it will block all .HTC (HTML Components) files you need to allow the following CLSID {3050f4f8-98b5-11cf-bb82-00aa00bdce0b}
If you are implementing IE Add-On blocking via the registry or GPO it will block all .HTC (HTML Components) files you need to allow the following CLSID {3050f4f8-98b5-11cf-bb82-00aa00bdce0b}