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)

All icomancer files are stored into the %appdata% folder... it is a common issue that Windows UAC or antivirus programs prevent icomancer to access its own files because it is no a signed application.

One of the ways to avoid this is by running icomancer as administrator -even if you have an administration account- or whitelist it on your antivirus.

Please try this and let me know if it helps.