[Bug 16617] New: klsoft.de Mathematik crashes on clicking selected text

http://bugs.winehq.org/show_bug.cgi?id=16617

Summary: klsoft.de Mathematik crashes on clicking selected text
           Product: Wine
           Version: 1.1.10
          Platform: Other
               URL: http://www.klsoft.de/download/klasse5.exe
        OS/Version: other
            Status: NEW
          Keywords: download
          Severity: normal
          Priority: P2
         Component: ole32
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

The author of bug 14120 wrote:
"2. Richtext ... clicking on a picture or formular crashes the emulator"

Clicking on selected text does it, too.  To reproduce:

unzip http://www.klsoft.de/download/klasse5.exe
cd "KLSoft - Mathematik"
wine "Klasse 5 Demoversion.exe"
Click on the lower right button "Bedienungsanleitung"
A help window will pop up.
Select a word, then click on the selected word.  Boom!
Crashes with
wine: Unhandled page fault on read access to 0x25206583
Backtrace:
=>0 OLEDD_DragTrackerWindowProc+0x24c(hwnd=0x10080, uMsg=275, wParam=1,
lParam=0) [ole32/ole2.c:2109]
...
2109      hr = IDropSource_GiveFeedback(trackerInfo->dropSource,