Here's a dialog maker made by RG, same use as dialog studio but has different feel when using it.

This program made by dohcan makes your life a little easier. With this you can easily make mIRC dialog in minutes.

This is a great docking DLL, you can dock a dialog from all side of mIRC window and make your own statusbar and a lot more features! Created by hyron.

MDX by Dragonzap, include all MDX extensions and help files. With this you can do a lot more with your mIRC scripts!

Here's a nice tool you can use to edit your mIRC scripts, it has features that default mIRC editor dont have. Created by RG.