By default, IBExpert stores settings (connections, SQL history, bookmarks) in the user's AppData folder. To make these truly portable:
Corporate IT environments often restrict users from installing new software. Because the portable version doesn’t touch the Registry or Program Files, you can run it directly from a user folder, an external SSD, or a USB drive without needing admin rights. ibexpert portable 64 bits
This error indicates a 32-bit/64-bit mismatch. You have a 64-bit IBExpert trying to load a 32-bit fbclient.dll.
Fix: Ensure all DLLs in your portable folder ( fbclient.dll, ib_util.dll ) are compiled for 64-bit. IBExpert stores settings (connections