[Wine] An application's icon raise "Invalid ico file format" during setup

[psalvan]

Hi!

Installing an application of mine under Wine 0.9.15, the application
icon doesn't appear in the desktop and in the Wine -> Programs ->
<application> menu because diring the setup I get the following error:
---
err:menubuilder:ExtractFromICO Invalid ico file format
err:menubuilder:InvokeShellLinker failed to fork and exec winshelllink
---

The icon is obviously ok under Windows; it is a true-color icon
composed by the following bitmaps:
16x16 24bit bitmap
32x32 24 bit bitmap
32x32 32 bit bitmap with antialiasing (shows smooth borders under
WinXP)
48x48 32 bit bitmap with antialiasing (shows smooth borders under
WinXP)

You can download and try the setup from
http://download.danea.it/demo/def2006demo09b.exe

Is this a known problem of Wine or should I post in in Bugzilla?

Bye!

Paolo