populating custom page with values

Hi all,
this is probably a no-brainer but I can't seem to find the answer...
I have a custom page with a few path entries that the user has to fill out. I can create the page ok, and read the values from it, but I don't see how to set the fields at runtime (the default values need to be read from the registry).

Any suggestions?
- Pixelfafa

Use MUI_INSTALLOPTIONS_WRITE (or WriteINIStr) after you extract the INI file and before you display it.

-Stu