As you might expect, more memory will be needed if you work with very large files. Help : About (in each program) provides information about the program's memory usage.
If you have a pre-Pentium Windows computer or use a version of Windows which doesn't support the current version of Java (like DOS or Windows 3.1), we recommend you stick to the DOS versions of our programs (sorry).
Disk Space - The trial version and the CD version of CoStat use about 60 MB of disk space (55 MB for Java + 5 MB for CoStat).