[Plugin: register plus] Suitable replacement

Hi, i was curious if anyone knows a replacement for the old plugin register plus, seems the author Skullbit has closed down the plugin site completely and they have also dissapeared. Maybe a one hit wonder i dont know but i do like the plugin.

I recently had an error when i activated the registration code invitation dashboard widget, it said

Warning: extract() [function.extract]: First argument should be an array in /home/xxxxxx/public_html/blog/wp-content/plugins/register-plus/dash_widget.php on line 24

Here is that section of code:

function widget( $args ) {
  extract( $args, EXTR_SKIP );

So what i did was i just made it an array right off the bat like this.

function widget( $args ) {
      $args = array();
      extract( $args, EXTR_SKIP );

and now i dont get the error, so im assuming that is correct.

But that started me looking for a replacement because i know there will be other issues with this plugin eventually since it has i guess been abandoned.

Anyone familiar with the plugin so i dont have to explain all the features, and know of a good replacement?

Thanks so much, peace