The ChemSpray.zip file you have requested: Modifications / Weapon Mods / ChemSpray Weapon - 144.88kb is not available. Perhaps try browsing all files for the game Dungeon Siege and upload any files you want to share or are missing. This is the only information we could locate:
This will put a whole new weapon into the multiplayer game called the Chemical Sprayer. The requirements for the weapon are 24 Str and 30 Dex.