For the BlackBerry Bold 9900 (a BBOS 7 device), the "autoloader" is actually a bundled OS installer (.exe) file used to flash the phone, often requiring the deletion of a vendor.xml file to work across different carriers.
Troubleshooting Tips:
Community Archives: You can find various BlackBerry OS files, including firmware for the Bold 9900, on the Internet Archive or third-party repositories like BlackBerry.com.ru.
Features of BB 9900 Autoloader:
Warning: Avoid random "free blackberry tools" websites that pop up in Google searches. Many contain adware or fake ".exe" files that will infect your PC. Always check file hashes (MD5/SHA1) if provided by the original leaker.