'haxe' is not recognized as an internal or external command. But I literally used it yesterday

[Funlamb]

Just like the title states. I'm having trouble running any commands.

I'm on Windows 8.1

So here is what I had done yesterday:
I installed HaxeFlixel just like this website guided. http://haxeflixel.com/documentation/getting-started/
I upgraded Haxe using haxelib upgrade
I tried running the hello world tutorial to get the error message Flixel not compatable with openfl 4.0.0
I ran the command to downgrade both Flixel and Lime

This is what the end of my environment path looked like when I checked to see if I could fix this myself:
%HAXEPATH%;%NEKO_INSTPATH%;

Not understanding how the above works I tried adding the path myself:
C:\HaxeToolkit\haxe;C:\HaxeToolkit\neko;

Can someone help me with what I have done wrong?

[starry-abyss]

Try restarting HaxeDevelop after changing environment variables. Paths you manually specified look good to me.

[Funlamb]

It works now. The only thing I did was restart my computer and play StarCraft 2.

The only reason I add StarCraft 2 is because none of this makes any sense.

[starry-abyss]

Restarting PC after changing environment variables makes sense. Though restarting the app that uses the variables (HaxeDevelop, cmd.exe, etc) is usually suffice.