ran spyhunter and found 204 parasites... can i safely delete them all? they are mostly backweb HKEY_CLASSES_ROOT module installation file, backweb client, script helper-137903, file access, dialogs, commander, backweb client, interactive user client com, config man, shadow alerts, shadow bar, basic connector, shadow app containers, shadow ui, .bwp, .iad, bwpfile, iadfile, and a lot of numbers with symbols. are there any i should not delete?