You are likely seeing this error message:
(Object Linking and Embedding Custom Control) is essentially a small program that adds specific features—like scroll bars, buttons, or specialized data processing—to a larger application. fast2001.ocx specifically belongs to a library called fast2001.ocx
fast2001.ocx is an (OLE Control Extension). OCX files are a specialized form of Dynamic Link Libraries (DLLs) designed to be reusable software components that provide specific user interface elements or functions. They were the precursor to ActiveX controls and are heavily used by older Visual Basic 6.0 (VB6) and Visual C++ applications. You are likely seeing this error message: (Object
Functions as a reusable software component that plugs into container applications. fast2001.ocx