According to information from Microsoft website, WEPOS is built on top of Windows XP for x86 processors. IDKit PC SDK should work on WEPOS without change. The embedded version of Windows XP might differ slightly from desktop version, so it is still a good idea to test IDKit PC SDK on WEPOS to make sure this platform can support our products.   

MSDOS will probably never be supported, because the platform is gradually losing popularity and it is severely limited in functionality.