I have read this question and this workaround does not work for me.
Now when I launch FileZilla the icon shows fine on the taskbar.
- How can I fix this in Windows 7?
- What causes icon corruption?
I don't know what causes icon corruption.
To rebuild the icon cache:
%systemdrive%\Users\"your User Name"\AppData\Local
Reasons of Corruption are Obscure until now..
You may have to Rebuild the Icon Cache in Windows 7
If one or more of your icons are not displaying correctly, or that your icon cache is corrupted, then you might consider rebuilding the icon cache to reset and reload the icon images into the icon cache.
This will not help with any of the following icon issues:
1-A shortcut's icon that is not displayed properly due to the source
of the shortcut being moved or deleted. You may need to recreate a new shortcut directly from the source (ex: program's exe) file to replace it instead.
2- All icons for a specific file extension display the wrong icon. This may be do to setting the wrong association for what program to open the file extension instead. You can restore the default file extension's associations to fix this icon instead.
If you have check that the source icon is not corrupted use this solution:
Windows 7 - Icon Cache - Rebuild from the SevenForum tutorials