Get current install size
 

First off, I apologize if this is a double post, I keep getting some kind of database error every 20 seconds on here...

I'm using the MUI to create an installer, but I have replaced the Directory page with my own custom page. However, I can't for the life of me figure out how to get the current installation size for the "Required space:" field. Any help? My page comes right after the MUI components page, if it makes any difference.

the site is acting up for everyone else also, hopefully it gets fixed soon.

It's probably less work to just customize the dir page (hide or disable items or whatever it is that you are doing)

If you still want to roll your own, steal parts of this code