http://bugs.winehq.org/show_bug.cgi?id=21381
--- Comment #1 from Dan Kegel dank@kegel.com 2010-01-16 18:32:11 --- BTW, it's documented that CALL expands environment variables. See http://ss64.com/nt/call.html so this is supposed to work, but people sometimes do it even when they don't need to expand variables.