Oblivion Script Extender

Authors: Ian Patterson (ianpatt), Stephen Abel (behippo), Paul Connelly (scruggsywuggsy the ferret)
Contributors: Timeslip, The J, DragoonWraith, SkyRanger-1, shademe, kyoma

Current Stable Version: v0021
Download: http://obse.silverlock.org/download/obse_0021.zip
Latest loader: http://obse.silverlock.org/download/obse_loader.zip

Documentation: http://obse.silverlock.org/obse_command_doc.html

OBSE provides official support for:
Oblivion & Shivering Isles build 1.2.0.416.  This is the latest official build of Oblivion.  It provides fixes for the FormID problems and supports Shivering Isles.  All users will need to update to this build in order to use OBSE v0017 and later.
Steam build 1.2.0.416 (in v0017b)

OBSE does not work with:
Oblivion 1.2.0.214 This was the official downloadable 1.2 patch. (as of v0017)
Oblivion 1.2.0.410: the Shivering Isles beta patch.
Oblivion 1.2.0.201: the Shivering Isles DVD build.
Oblivion 1.1.0.511 This was the original Oblivion that OBSE supported. (as of v0017)
Oblivion 1.0: the original DVD build of Oblivion.
The Direct2Drive version of Oblivion or Shivering Isles. The Oblivion.exe provided by D2D is encrypted, and we cannot patch it without breaking the encryption.  We will not do this, as it is illegal.
The Impulse version of Oblivion or Shivering Isles. The Oblivion.exe provided by Impulse is also encrypted.
The GameSpot version of Oblivion or Shivering Isles. The Oblivion.exe provided by GameSpot is also encrypted.
Probably any digital distribution version other than Steam. This is just going on history with other services.

If you have installed the Shivering Isles beta patch (1.2.0.410), don't worry - download and follow the instructions in the autopatcher and it will walk you through getting the original Oblivion.exe off of your DVD.  Then you can apply the 1.2.0.416 patch. (source code)
Downloads

v0009 Demo video 15mb: OBSE_v0009_Demo.wmv