Aurora for Windows' installation program does not install the included SSIL device driver files for use with the Aurora SSIL Voice Driver.
If you have a synthesizer not listed as included but you have a driver, please see Adding a New, Unlisted SSIL Driver.
If you are using one of the included synthesizer drivers, you will need to install the SSIL driver files into the C:\AWIN3\SSIL directory by following the instructions below.
1) Go to a DOS prompt C:\>
2) Change to your C:\AWIN3 directory by typing
CD \AWIN3 <Enter>
3) Run the MakeSSIL program by typing
MAKESSIL /y <Enter>
4) You can then free up roughly 500K of disk space by deleting C:\AWIN3\MAKESSIL.EXE
5) Follow the directions in Configuring SSIL Drivers.