For those who might not be familiar, SKSE is a tool that allows developers to create complex mods for Skyrim by providing a wide range of scripting possibilities that aren't available in the vanilla game. It's especially useful for creating mods that alter gameplay mechanics, add new features, or enhance existing ones.
Although SkyUI itself is not a DLL mod, its MCM (Mod Configuration Menu) relies heavily on SKSE’s extended UI functions. With SKSE 1.6.640, SkyUI functions without issue, but third-party MCM add-ons needed updates due to a change in how UICallback handles strings. skyrim skse 1.6.640
SSE Engine Fixes: Specifically version 5.9.1 for this runtime, which addresses engine-level bugs and memory issues. For those who might not be familiar, SKSE
plugins, which can modify the game's underlying C++ engine code for bug fixes and performance improvements. Memory Management Improved Scripting Capabilities : SKSE 1
skse64_loader.exeskse64_1_6_640.dllskse64_steam_loader.dllData foldersrc folder (source code, ignore), you need a specific version of the Skyrim Script Extender (SKSE) to ensure your mods function correctly. The Correct Version For Skyrim version 1.6.640, you must use SKSE64 version 2.2.3
So, why should you use SKSE 1.6.640? Here are just a few benefits: