Tutorial copied from a post on F95:
* Download the binary from github; https://github.com/Harakku/bitrock-unpacker/releases/
* Put the bitrock installer you want to extract into a folder with the bitrock-unpacker exe
* Open a cmd window and change the working dir to that folder:
cd "path\to\folder\"
* Use the following command format to extract it:
bitrock-unpacker-v2019-11-18-x86.exe INSTALLER.EXE OUTPUT_DIR
This should work on any bitrock installer, whether it's a plugin or a content installer.