fast2001.ocx is a legacy ActiveX control commonly used in older software, specifically associated with applications built using Visual Basic 6 Classic Visual Basic
I checked the dependencies. The fast2001ocx relied on a specific version of the MSVC runtime libraries—libraries that had been wiped out during an "emergency security patch" pushed by the sysadmin team two hours ago. They had updated the C++ redistributables, and in doing so, they had severed the legs of the upload control. fast2001ocx fix