OOOOOKAYY ?!?
Now please dont get me wrong here, even if he wrote it, seriously, wouldnt you be surprised if someone comes along and tells you:
"Hey that what you see there with your own eyes, its not happening... you are seein things there..." wouldnt that surprise you too ?
I mean, this is real life, not StarTrek. Hey and i do LOVE StarTrek... 
(oh and i believe, he didnt program Live Mail right ? So did you test on a XP machine if its true what happened, or just guessed ?
See what i mean with prooving the fact ?)
Ok here come the juicy details...
Normally if a program crashes under WB, what do you do first ? ... right, you try to exclude it...
thats what i did, went into the folder c:\Programme\Windows Live\Mail\ found wlmail.exe and excluded it... whoops that didnt help.
LiveMail still crashing...
And why could i say it was WB causing the crash ? Well i unloaded WB, and voila LiveMail runs fine...
Ok what do all forum hosters say? before you bother anyone try to find the solution yourself... (google)
I found, wow, i am not the only one hallucinating a crashing LiveMail... and WOW even more, someone found a solution !!!
I just couldnt find the solution in the WB forums, and wanted nothing but being helpful when i posted it !!!
Now if you watch close, in the solution i disabled Visual Designs on wlcomm.exe , and not on wlmail.exe !!
Thats why i could say that there is a solution that helps without excluding wlmail .. and yayyyy that did the trick.
Please let me get away without posting screenshots of the issue and just believe me, ...without doin so, Live Mail crashed....
after disabling visual designs on wlcomm.exe, no more crashing happens. And i see LiveMail nicely framed with my favorite blind 
Now one last thing... I have to admit that i did not proove one fact:
Is disabling the visual style the same then excluding something from being skinned by WB ? If so, then thanks for letting me know 
I might have been wrong when i thought disabling Visual Design is only related to XPs internal use of msstyles...
So Mr. Neil Banfield, i hope that you dont feel offended now, and if you wrote WB, then you did a outstanding Job ! and i still believe:
WB is the best Windows theming software ever !!! 
Live long and prosper !
Sincerely
Cytraveler