Before you hunt for SKSE 1.5.97, confirm your game version:
: This version remained the game's stable standard for over two years, allowing the most complex SKSE plugins to be perfected without fear of constant updates. Exclusive Plugins : Some powerful mods like Netscript Framework (essential for advanced crash logs) and No Grass In Objects skyrim skse 1.5.97
Use the by halgari (available on Nexus Mods). Run the "Best of Both Worlds" patcher. This keeps the AE content (Fishing, Survival Mode) but rolls the game .exe back to 1.5.97 . Before you hunt for SKSE 1