> emacs crashes every time I do the following:
> 
> go to Options->Show/Hide->speedbar
> in the speedbar frame: click modeline->Speedbar->Quit
> 
> In GNU Emacs 23.0.90.1 (i386-mingw-nt5.1.2600)
>  of 2009-02-01 on SOFT-MJASON
> Windowing system distributor `Microsoft Corp.', version 5.1.2600
> configured using `configure --with-gcc (3.4)'

Could you please try the attached patch?

Thank you, martin.