[Bug 7923] Game (Mount&Blade) crashes immediately when starting

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=7923





------- Additional Comments From focht at gmx.net  2007-04-04 11:06 -------
Hello,

i had a look at it ... bad news ... its called "themida".

That game is protected by this advanced engine which implements various user and
kernel level modifications to prevent debuggers and other tools from work.
The exceptions as seen in wine trace come from various usermode debugging
tricks, like int 0x1/0x3 (replaces to prevent hw and sw (0xCC type) breakpoints).
Further int 0xE and int 0xB are hooked at system level (prevents memory type bp)
Some SST entries too (ZwAllocateVirtualMemory, ZwCreateThread, ZwDebugContinue,
ZwQueryVirtualMemory and more..) - additonally it puts up various stuff which
makes sure no one modifies IDT and SST at ring0.

Simplified: it works just like a rootkit.

Though there exist some older manual unpacking tutorials to restore IAT and OEP
which are very time consuming (no guarantee of success), the newer engines are
suspected to employ some kind of virtual machine (this stuff seems to become
more popular lately in newer PE protectors).

In short: it's beyond the scope of wine.
If you really want to play that game, i suggest to use dual boot or vmware.

Regards

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