public static extern int CeCreateFile(

function info on msdn at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wceactsy/html/cerefCeCreateFileRAPI.asp

CeCreateFile("\\test.txt", GENERIC_READ | GENERIC_WRITE, 0, 0, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0);