The card was built around the chipset (specifically the SAA7130 or SAA7134), which was the gold standard for analog video capture at the time.
Finding the "proper" driver depends on your version of Windows: pcitvcapturecardlwpcitvfmdrivers
This string appears to reference:
Look for a chip labeled or SAA7134 or SAA7135 . The card was built around the chipset (specifically
Finding and installing the original or generic driver packages for these legacy expansion cards on vintage operating systems requires a structured approach. 1. Identify the Main Chipset pcitvcapturecardlwpcitvfmdrivers