I have all the Script BASIC extension modules installed on CompileOnline. The only ones that aren't installed is the MySQL and ODBC ext. module as the site owner is afraid of excessive use. The SQLite3, cURL, GD, T, RE, HASH modules seem to work fine. If you need to upload data files to a CompileOnline Script Basic session, use the curl extension module. Once the session exits (after downloading the project) all files are deleted that were created by the session. I don't know if there are any disk size limitations per session or not. The other nice feature is you can download your complete project in a zip.