It seems there's something in the path that isn't being recognized... perhaps an invalid character :(

Could you please send me a screen shot of the window that launches the exception? the problem seems to be in an specific icon: the procedure that extracts the best image for a given icon is throwing the exception...

Or, in the best of the cases, there's an issue with the underlying OS permissions over the file...

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.