Because of the length restrictions on file names in MS-DOS, one technique truncates a font name longer than eight characters, such as lcircle10 and lcirclew10, to eight characters. This uses names like lcircle1.pk and lcirclew.pk for PK font files and lcircle1.tfm and lcirclew.tfm for Font Metric Files.
(Another technique cuts out the middle as with lcirle10 and lcirew10.)
Note: This writes lcircle10 and lcirclew10 in the dvi file only for the file names of fonts and is no different than a dvi file created on UNIX for example.
Since long file names can be used in Windows 95 and NT, the correct, the full names can be used.
The font files and various utilities provided by MS-DOS are usually truncated to eight characters. Therefore, caution is necessary if they will also be used.(Change to a correct font file name or use -L: or -F:.)