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Retrieving the COM class factory for component with CLSID {B4E1B2EC-151B-11D2-926A-006008123235} failed due to the following error: 80040154. in my application i use third party tool (aspjpeg) for reseizing the image. when i run this application i get this error please help me
You’re probably dealing with a Class Not Registered error, as described at http://support.software602.com/kb/view.aspx?articleID=987. Is there an installation program for this third-party tool. There may be missing registry entries describing this COM component.
A bit more description:
The DLL you’re adding may have dependencies on other COM objects in other DLLs. Let’s say that COM Component A has a dependency on COM Component B. This dependency is not from one file to another, but from one file to a what’s called a class id (also referred to as CLSID).
In this case, say that COM Component A refers to CLSID “1234.” A registry check is made under the HKEY_CLASSES_ROOT\CLSID folder for a folder with a matching CLSID. Once found, that folder’s InprocServer32 folder is read and the exact path to the DLL housing COM Component B is determined, and then loaded.
In short, you’re getting error messages because one or more of the registry entries mentioned above are missing.
EDIT: Added details about how COM components are referenced and loaded by the COM runtime.