Here are the final revisions of common GUS files to get your card up and running:

Gravis UltraSound Classic/MAX/ACE (GF1 Series)

• DOS and WIN311 v4.11 Drivers
• Windows 95 v1.2 Beta Drivers -- Adds DirectSound support to Gravis UltraSound MAX and improved performance for all GF1 chipsets.
• Gravis UltraSound ACE Ultrinit Patch -- Fixes joystick port clashing on ACE cards!

Gravis UltraSound Plug and Play (PnP) (Interwave Series)

• Windows 95 v2.2 Drivers
• DOS v2.2 Drivers
• EEPROM Update for reduced IRQ/DMA/Resources usage -- STRONGLY RECOMMENDED!

Gravis UltraSound Extreme/Synergy ViperMax (GF1 and ESS1688 Series)

• DOS Drivers from GUS Extreme CD
• Windows 95 Drivers from GUS Extreme CD
• Gravis UltraSound Extreme ISO
• Synergy ViperMax ISO

Useful stuff

• ProPatches Lite v1.61 for GF1 Series -- Better sound patches.
• IWEEPROM v1.3 -- Configure your GUS PnPs EEPROM for better resource management.
• XTC-Player v0.97c -- Excellent MOD player for DOS.
• OpenCubic Player v2.60 pre 6 -- Another excellent MOD player for DOS.