The Windows 98 Resource Kit contains a lot of useful tools, which also can be found on the Win98 install cd (X:\Tools\Reskit). They also work for Win95 and WinMe

Some of the more exciting tools:

• Bootedit.exe (Makes it easy to configure MSDOS.SYS)
• Poledit.exe (Provides easy access to hidden registry settings)
• Sredit.exe (Helps configuring Scanreg.ini)

Note to download the utilities from the Microsoft's FTP, then one have to configure the FTP client not to use passive mode.

More Info MS KB247024
More Info MS Windows 98 Reskit Documentation