Well, Fast Exit 2 will only prevent crashes when exiting the game, not prevent crashes while playing. The best way I have found to remedy crashes while playing, is to at least use OBMM to install mods and BOSS to organize the load order. I also use Wrye Bash for the Bashed Patch feature, but you should be able to stabilize Oblivion somewhat with OBMM and BOSS. One thing to look out for with BOSS. If you have not used it on an existing install of Oblivion and you have manually set the load order, be aware it might not let a particular savegame load after changing the load order with BOSS. The best insurance for this issue, is to back up your load order with OBMM, first, prior to running BOSS. If the changes BOSS makes to your load order cause a save to not load, you can revert back to what you had previously with OBMM. I, unfortunately, learned this the hard way. :) Before I started using BOSS and Wrye Bash, I would have those regular, short interval, crashes. Now that I am using OBMM, BOSS, and Wrye Bash, in-game crashes are few and far between. They still occur on occasion, but only after playing for several hours, ie. multiple quests, travel to multiple cities, etc. Now, having previously stated that the Streamline Fast Exit is not quite as good as Fast Exit 2, Streamline does have some features I use. The cache purge feature alone is worth installing Streamline. The autosave feature in Streamline has bailed me out more than a few times.