Why might a hijacked DLL fail to load in a scheduled task, and how do you fix it?

The scheduled task expects the DLL to export specific functions like `DllCanUnloadNow`, `DllGetClassObject`, `DllRegisterServer`, and `DllUnregisterServer`. If the malicious DLL lacks these exports, the task will report an error (e.g., 0x800401F9). The fix is to add these export functions to the DLL using a tool like `dumpbin` to inspect the original DLL's exports and then recompiling the malicious DLL with the required exports. This ensures the COM runtime can load it properly.