Allowed reverse engineering methods

[Mariusz Pluciński]

Hello
I'm working on implementation of Games Explorer for Wine
(in Google Summer of Code). My work gets progress, but to
finish it, I need to get more information about Windows
implementation.

My question is: which reverse engineering methods are
legal and accepted while working in Wine project?
Only information I found is located on Wine's wiki page
(http://wiki.winehq.org/SummerOfCode):

>  *  You are not allowed to read or reuse Windows source code
>(leaked source / Windows >Research Kernel* / ...)
>(* we are following the SFLC's advice)
>  *  You are not allowed to reverse engineer Windows files by
>disassembling or >decompiling them
>  *  You are not allowed to analyze Windows files with the
>trace functions of Wine

But which methods are allowed? I assume that "obvious"
methods (reading header files, registry dumps, etc.) are
acceptable, but can I e.g. analyze .pdb symbol files
(availble in e.g. Microsoft's DirectX SDK)?

Can I copy executable from Windows (.exe) and analyze it in Wine
using winedebug's "relay" channel? (last point from website
I linked above says that I can't analyze "Windows files" this way,
but I'm not sure is it apply for executables in way I described).

Mariusz Pluciński