If you are currently on version 1.6.640 or higher, you cannot simply "install" SKSE 1.5.97. You have to downgrade your game. Here is the step-by-step process that the community trusts.
: This vital tool for diagnosing crashes only works on version 1.5.97, making it a favorite for users with massive, unstable load orders. skyrim skse 1.5.97
In the AE update (1.6.x), hundreds of essential mods—including Address Library , SSE Engine Fixes , RaceMenu , and True Directional Movement —became instantly incompatible. While the SKSE team (Silverlock) updated to version 2.1.x for AE, many mod authors had moved on from Skyrim. Consequently, dozens of high-quality, niche DLL mods were never updated for AE. If you are currently on version 1
Mod Ecosystem & Use Cases
For many modders, (pre-Anniversary Edition) is considered the "gold standard" for stability and plugin compatibility. The essential tool for this version is SKSE64 version 2.0.17 , which enables advanced mods like the .NET Script Framework that are unavailable in newer versions. Core Setup Guide for v1.5.97 : This vital tool for diagnosing crashes only