it is often usefull in reusable code to know if you are running on a windows slave or not.

For example you may want to invoke maven - but on windows you need bat 'mvn ...' and Unix like systems sh ' mvn...'

The current workaround involves a function like

boolean isWindows() {
    return env.OS == 'Windows_NT'
}

but this is not ideal.

so please implement something that can be more reliable to determine a windows node. (get the path separator, directory seporator - or just isCurrentNodeWindows())