Can't instantiate COM component in C# - error 80070002
c#, com, com-interop, interop
Solution
80070002 is a File Not Found error.
My guess is your machine is missing a dependency. Try running the com component through depends.exe to see if you have all of the required libraries installed.
Problem
I'm attempting to instantiate a Windows Media Player COM object on my machine: ``` Guid mediaPlayerClassId = new Guid("47ac3c2f-7033-4d47-ae81-9c94e566c4cc"); Type mediaPlayerType = Type.GetTypeFromCLSID(mediaPlayerClassId); Activator.CreateInstance(mediaPlayerType); // <-- this line throws ``` When executing that last line, I get the following error: ``` System.IO.FileNotFoundException was caught Message="Retrieving the COM class factory for component with CLSID {47AC3C2F-7033-4D47-AE81-9C94E566C4CC} failed due to the following error: 80070002." Source="mscorlib" StackTrace: at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandle& ctor, Boolean& bNeedSecurityCheck) at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean fillCache) at System.RuntimeType.CreateInstanceImpl(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean fillCache) at System.Activator.CreateInstance(Type type, Boolean nonPublic) at System.Activator.CreateInstance(Type type) at MyStuff.PreviewFile(String filePath) in F:\Trunk\PreviewHandlerHosting\PreviewHandlerHost.cs:line 60 InnerException: ``` This same code works on other developer machines and end user machines. For some reason, it only fails on my machine. What could be the cause?