"If your server doesn't allow it then a Error 500 is given"
Edit the .htaccess access file in the root of the dragonfly folder (same folder as config.php and admin.php)
. Add the following 2 lines at the bottom:
php_value upload_max_filesize 200M
php_value post_max_size 200M
Change the numbers to whatever you want, just make sure they are both the same. Save and upload.
Log into your admin screen and go to DOWNLOADS > CONFIGURATION >
UPLOADING and look in the first column. If it says “PHP Max: 200M” it
has worked. Now change the upload limit in downloads pro to be anything
you want up to the maximum allows PHP size.
Now do a test upload to see if it works.
Just before writing this I successfully uploaded a 194meg file. It went
fine, only problem was there was no feedback as to how the upload was
progressing, so I had no idea how long it would take or if the upload
had frozen, this is only a problem for large file uploads, obviously.

How to Change Default php Upload File Size

