|I notice that your O/S is Windows XP. You cannot start a Windows XP system using a Windows 98 or Windows ME boot disk.|
As you will be aware, pure DOS mode was removed from Windows XP by Microsoft, so trying to boot a WinXP system to DOS using a Win9x boot disk is a receipe for a disaster!
WinXP uses the NTFS file system, whereas Win98/ME use FAT32. A Win98/ME boot disk will load a version of DOS which only understands the FAT32 filesystem, and so *cannot* be used with an NTFS file system.