You can convert modules from code page to Unicode with the Unicode module converter tools. This tool is very useful for the migration from BlackBox 1.5 Russian version to BlackBox 1.7 CPC edition.
With a new subsystem you may have the following questions: "Which modules must I compile?" and "Which other subsystems I need for using this new subsystem?" Now you get the answer very easily. You can create compile list and import list with the compiler helper tools. Looking thru the import list you can checking your system of consistency and found missing or misspelling modules even the source is not available.