[jackie_w]

Following up on my own thoughts...

I've managed to make EpubCheck work on my PC by making the following minor changes:

1. lines 154-157

                    if iswindows:
                        # drive_letter = os.getenv("SystemDrive")    
                        # line = re.sub(drive_letter, 'C^',  line)
                        # line = re.sub(drive_letter.lower(), 'C^',  line)
                        pathx = epub_path.replace(os.sep, '/')
                        line = re.sub(pathx, '',  line)

and also comment out lines 191 and 192

                    # if iswindows:
                    #    filename = os.path.basename(re.sub('C^', drive_letter, filename))

Only time will tell whether it's a robust solution or a temporary Band-Aid