When preparing Newton software for release, products tested were Windows 3.x, Windows 95, and Windows NT 3.5. Apple did not include testing for Windows 98. The decision of what software to test was based primarily on the software being used by Newton customers at the time the software was released. This list did not include Windows 98.
Apple understands that migration to Windows 98 will occur and that some users may want compatibility information prior to using their Newton software. However, Apple does not have results from official testing that would verify Windows 98 as being a recommended environment for use with Newton software. Apple recommends using a tested and supported operating system as noted in the official product release information.