The latest version of http://www.google.com/url?sa=t&source=web&ct=res&cd=1&ved=0CAgQFjAA&url=http%3A%2F%2Fobse.silverlock.org%2F&ei=lDnBS4DzHcOqlAeYy_zcBA&usg=AFQjCNH8XIX2DHFotAglNGVXhXsXuHxz0w&sig2=WVUtLLh5B9cwtbHBTD3yxA v18b6. To install:
# Download Oblivion Script Extender (OBSE) to the Oblivion folder
# Extract it there. (It will add a folder containing the OBSE files.)
# Copy the following up into the Oblivion folder: "obse_1_2_416.dll", "obse_editor_1_2.dll", and "obse_loader.exe"
# Delete the folder and the archive it added
>> notes: from now on!! do use the obse_launcher.exe to launch your game, launching the game with OBSE-dependent plugins (not OBSE plugins) installed guarantees a crash, so it is best to get used to always using this launcher