Installation Question

Is it necessary to re-install reshade me for every program you wish to use it with?

Yes. Though you can share effect files between them if you want (by having them in a central location and changing the effect/texture search paths in the ReShade settings to point to that central location).

So by "effect files" you mean presets, or the actual shader files themselves?

Both. You can load both what ever location you want to.

Now I can install it, It's worked.