Model: CS4237B 4237 CS 4237B
Operating System: Windows XP (Note: might work with other versions of this os.)
After hours and hours of exhausting search and testing, this is the only driver I found to be working on:
Laptop Dell Inspiron 3200
Crystal on-board sound card CS4237B
Windows XP SP2
I did a manual install to update the loaded (but not working) drivers that Win XP installed by default. The manual install was done through Device Manager, driver update function.
Worked like a charm!