Image magick palette

I searched a few and seems that here is the right place.
I use image magick on Linux and also in windows. My question is how do
I do in order to convert a .bmp image to 256 colors but using a
palette (colormap?) that contains the windows palette. I need a final
256 colors bmp with the windows colors palette, because windows
defines one of his colors to be the transparent color for his
controls. On PaintShopPro this is achieveable checking include windows
colors on the 256 colors reducing dialog box.
Thanks!