Call to undefined funchtion imap_open()

I am seeing this error in PHP code I know works elsewhere on a 5.x server.

I have tried compiling the proper extensions into the EXE, copying them into a subfolder, manually editing the php.ini to make sure the extensions are active, and enabling all extentions, but nothing seems to work.

Help!

You shouldn’t edit the PHP.ini to enable extensions, the program will do it itself.
Which extensions did you enable?