'application/x-download' may come from a suspicious file, having kind of virus or trojan or something like this inside. You are under big risk to allow such files to be uploaded on a public server.
REF:#application/force-download#1283955#nur-ein_kleiner_test-1.zip#zip, in the zip (1,2mb) is an pdf-dok with the same name .. and no virus ;-)
In the Options i have:
Whats wrong ?