An application unhandled exception has raised:

System.NotSupportedException: The given path's format is not supported.
at System.Security.Util.StringExpressionSet.CanonicalizePath(String path, Boolean needFullPath)
at System.Security.Util.StringExpressionSet.CreateListFromExpressions(String[] str, Boolean needFullPath)
at System.Security.Permissions.FileIOPermission.AddPathList(FileIOPermissionAccess access, AccessControlActions control, String[] pathListOrig, Boolean checkForDuplicates, Boolean needFullPath, Boolean copyPathList)
at System.Security.Permissions.FileIOPermission..ctor(FileIOPermissionAccess access, String[] pathList, Boolean checkForDuplicates, Boolean needFullPath)
at System.IO.FileInfo..ctor(String fileName)
at Icomancer.Functions.ExtractIconToFile(String SourceIconPath) in H:\Icomancer\Icomancer\Functions.vb:line 1392
at Icomancer.frmImbuer.LocalCollectionSelector_PathChanged(String changedPathName, String changedFullPath) in H:\Icomancer\Icomancer\frmImbuer.vb:line 590
at Icomancer.uctlFolderTree.Tree_AfterSelect(Object sender, TreeViewEventArgs e) in H:\Icomancer\Icomancer\uctlFolderTree.vb:line 80
at System.Windows.Forms.TreeView.OnAfterSelect(TreeViewEventArgs e)
at System.Windows.Forms.TreeView.TvnSelected(NMTREEVIEW* nmtv)
at System.Windows.Forms.TreeView.WmNotify(Message& m)
at System.Windows.Forms.TreeView.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Please take a screen shot of this and send it to icomancer_support@lavasoftworks.com so we can figure out how to fix it.

That error message is strongly associated to security software messing with icomancer. Please run it as administrator and you will be fixed unless you are trying to set icons to folders protected by Windows or your antivirus.