Maybe your board has a different soundchip, that would be bad luck. 😒 Unfortunately my Epox 8KTA3+ PRO has died from too much abuse, so I can't test it anymore, but my girlfriend still has the non-PRO version of the same board at home, I will check the settings when I have time.
I remember there was some init program for DOS, but it wasn't really necessary, since it only checked the BIOS configuration and set the BLASTER variable accordingly, which also could be done without the program if you knew the settings.
Also, the emulation only worked if you enabled the "Legacy Sound" option in the BIOS and selected the resources for IRQ, DMA, and base adresses. The emulation was so good that Win95 got fooled and installed the standard 8bit Soundblaster driver. Under Linux the card also worked with OSS Soundblaster modules. The drawback of this was that as long as the emulation was enabled in the BIOS, you were stuck with 8bit stereo sound and the modern capabilities of the chip (16bit, 48khz, fullduplex) could not be used at the same time.
I used it with all DOS games which didn't support the GUS I had installed in the ISA slot.