When I try to create a instance of a COM class it throws an exception as
Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))
Please suggest how could i solve it?
views:
553answers:
3
+2
A:
By registering the class (specifically its CLSID) -- see e.g. here.
Alex Martelli
2009-09-30 05:19:49
Could it also be some object that needs to be installed on his machine or server, not necessarily a registration of the class.
Xaisoft
2009-09-30 05:21:15
@Xaisoft, "installation" typically involves "registration", as the MSDN url I pointed to mentions.
Alex Martelli
2009-09-30 05:24:02
That makes sense.
Xaisoft
2009-09-30 05:25:22
+1
A:
It looks like whichever program or process you're trying to initialize either isn't installed on your machine, has a damaged installation or needs to be registered.
Either install it, repair it (via Add/Remove Programs) or register it (via regsrv32.exe).
You haven't provided enough information for us to help you any more than this.
Jay Riggs
2009-09-30 05:21:52
A:
Also note that the class context when initializing can create that exception. If you have an object which is coded as INPROC_SERVER but you try to CoCreateInstance as CLSCTX_LOCAL_SERVER, you will also get that error.
You need to ensure the object is registered and the CoCreateInstance is creating an instance with the correct class context.
Andrew Keith
2009-09-30 05:24:07