To install the Win98 update to the same partition as Win95 without upgrading do the following:
- Boot with a Win95 or Win98 installation boot diskette or Press F8 at the Starting Windows 95... message then choose Command Prompt Only from the Win95 startup menu.
- Start the Win98 setup program. For a list of available options, type setup /? and press ENTER.
- Be sure you install Win98 to a different folder otherwise you'll overwrite Win95.
Please note that even if you install Win98 to a different folder, they both use the same folder structure for the additional software such as those items put under the Program Files folder.