从C＃访问OCX库时发生“灾难性故障”

System.Runtime.InteropServices.COMException was unhandled
 Message=Catastrophic failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED))
 Source=mscorlib
 ErrorCode=-2147418113
 StackTrace:
  at System.RuntimeType.ForwardCallToInvokeMember(String memberName, BindingFlags flags, Object target, Int32[] aWrapperTypes, MessageData& msgData)
  at OCXDLL._OCXDLL.MyMethod(Int32 param0, String param1, String param2, String param3, Int32 param4)
  at MyApplication.Program.Main(String[] args) in C:\\MyApplication\\Program.cs:line 29
  at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
  at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
  at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
  at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
  at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
  at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
  at System.Threading.ThreadHelper.ThreadStart()
 InnerException: 

using OCXDLL;

namespace MyApplication
{
 class Program
 {
  static void Main(string[] args)
  {
   OCXDLL libObj = new OCXDLL();
   libObj.MyMethod(....); 
  }
 }
}