CT4810 should be one of the SB-Live cards?
The DOS driver gives you at most an emulation of a virtual standard DOS-ISA soundcard.
f.e. Soundblaster 16
So try this:
Load the emulation driver. This should give you something like a virtual SoundBlaster. Check if the environment variable BLASTER which stores the virtual hardware ressources provided by the emulation driver is set correctly. Maybe the driver or driver-installation sets this variable.
Try if it works with some program supporting the emulated soundcard, like:
MPXPLay, OpenCubicPlayer oder XTC-Play etc...
start with Soundblaster [Pro].
But note, that an emulation driver cannot emulate real hardware to a 100% identity. There might be programs that work and others that don't (even crash).
Oh and checkout if http://dosbox.sourceforge.net/news.php?show_news=1
is sufficient for your application.