Line Chart for .NET prior framework 3.5

I am developing an application and I must do it开发者_如何学编程 in WPF and use .NET 3.5. The problem is that I can't use MSCharts for 3.5 because that would require XP installations to install SP3, something that they don't want.

The WPF toolkit was buggy on their machines, so is there any other solution or I should start just drawing lines?

It seems that Charts work with framework 3.5 -no 3.5 SP1 great... they work even with 3.0 I have SP3 windows versions on my old machines so i cant unistall SP3 to check.. but prior <3.5 doesnt require XP sp3.. so thats should be ok...