Are you sure your source is not UTF 8? If so, all those encoding conversions may be doing more harm than good.
C:\Users\Bart\LazarusProjecten\ConsoleProjecten>testΑ α, Β β, Γ γ, Δ δ, Ε ε, Ζ ζ, Η η,Θ θ, Ι ι, Κ κ, Λ λ, Μ μ, Ν ν, Ξ ξ, Ο ο, Π π, Ρ ρ,Σ σ/ς, Τ τ, Υ υ, Φ φ, Χ χ, Ψ ψ, Ω ω.
So guys will it display those letters correctly somehow with LazUTF8 lib added? Otherwise which method should be used here?