I want to develop a module using windows but the documentation is only for linux. I know I should use the cs-cart sdk but it is developed for linux/mac only. What should I do?
The biggest issue you're going to run into is the directory path separator. Just ensure you use the php constant DIRECTORY_SEPARATOR on filesystem references. For http references you should always use a forward slash since HTTPD (and others) will adjust for anything different on the underlying system. I.e.:
function my_local_path($path) { return str_replace('\\', DIRECTORY_PATH, $path); }
Could do nothing on a linux system but handle the replacement on a windoz system.