Could you recomend me a good company (reliable and with good support) that sells windows vps?
Doesnt matter the budget.
I wait comments.
If budget is not a concern, I would suggest you get a dedicated Win2k3 server. ThePlanet has them at a pretty good price, you can add Win2k3 for only $20 on top of their regular dedicated server prices.
What are you trying to do that requires specifically a Win2k3 VPS?