This page is a replacement for one originally made by Mana84. He wrote an app that will convert a shader file from ShaderModel 1.0 or 2.0 into ShaderModel 3.0, which is the only one supported by HelixMod.
It's also possible to use DarkStarSword's shadertool.py, that will automatically convert any 1.0 or 2.0 shaders into Shader Model 3.
shadertool.py
Thanks to D-Man11 for finding and reporting the broken link, and thanks to masterotaku for uploading the original converter.
THIS IS FOR CODERS
BY MANA84
It has a small flaw where it may leave a . after the output like Texcoord1 o2[.] just make sure to check if it does that then remove it. Should save some time if doing an old game. Make sure to remove preshader lines if it has any before hand as well. Just drag and drop.ShaderConverter.exe