For those having troubles installing Reshade + SweetFX 2.0, using SweetFX 1.5 should work but since I don't run Windows 10, haven't tested it.
1. Download SweetFX 1.5
Here2. Unzip the file to your Aces High 3 folder (should be: C:\Hitech Creations\Aces High III)
3. Download my SweetFX 1.5 setting
here and save it to the SweetFX folder in your AH3 directory
4. In your AH3 directory, you should see the file "SweetFX_settings", rename this file to "SweetFX_settings.bak
5. Go into the SweetFX folder in your AH3 directory and rename the file you just downloaded to "SweetFX_settings"
6. Copy and paste "SweetFX_settings" into the main AH3 directory
6. Run AH3 and the SweetFX should be enabled on start up.