You could boot off a Linux LiveCD... e.g. the latest Ubuntu distribution. Good
hardware support, and it sees all kinds of filesystems, including NTFS if you want to work with some version of Win XP.

Ah... Win98SE... it was the last time I hooked up an external modem to a
serial port [whose pins I even had to "discover" on the motherboard, as the PC
did not have the serial port implemented... ]

<*voice chokes with emotion>