http://bugs.winehq.org/show_bug.cgi?id=2490
------- Additional Comments From mike@navi.cx 2004-27-09 04:46 ------- Well, the preloader is required to get a Win32 compatible address space. It's not a kernel 2.4/2.6 thing I'm afraid.
The preloader is a rather unique piece of code, you can be assured these options are specified for a reason. Why do you want to disable it? Changing the options here provides no additional security whatsoever as the preloader cannot be exploited via buffer-overflows. You're far more likely to be compromised via the software you run on it.
There was a discussion about this on wine-devel in the past few days.