You could perhaps try this:
i Download the freeware utility Aladdin Expander 2.0 (try a Google search for the exact file name).
i A disk-image utility for PC will also be needed. For example, the shareware utility WinImage 6.10 (winima61.exe
here).
i Install the programs on the PC.
i Prepare an empty PC-formatted 1.44 MB (HD) diskette through the FORMAT A: command in DOS (or via the "Full" formatting command under Windows).
i Download the Network Access Disk 7.5 .bin file (Network
Access_Disk7.5.sea.bin
here). The Windows operating system may truncate the file name. Drag this downloaded file (as it is) onto the Aladdin Expander 2.0 icon (on the Desktop). Aladdin Expander will decode the file into an archive (document) called Network Access Disk 7.5, and automatically decompress the latter into a Network Access folder.
i Inside the Network Access folder you will find a Read Me document and a file called Network Access.image.
i Insert the empty PC-formatted diskette into the PC's floppy drive.
i If WinImage is used, drag the Network Access.image onto the program icon. In the WinImage application window, select Write disk (from the Disk menu) or click on the Write disk icon. When the operation is completed, immediately eject and lock the diskette.
i You should now have a startup floppy for the LC III.
i The procedure is a variant of a method described in the 68000 FAQ (
here).
If necessary, a full System 7.5.3 (various language versions) is downloadable from Apple.
Also, do check the internal battery. You may want to
reset the PRAM too.
Jan
