The site uses HTTPS, which is not really a good friend with Windows 98. To access to this site under Windows 98, use http://pegazus.space:5211/retro-os-files link, although it's unsecured connection; also be aware that using Windows 98 for Internet browsing is really, REALLY bad idea.
enZip 2.60 is an archive manager for ZIP files and self-extracting (EXE) zipped files; features program-install from archive, password encryption of archives, integrity check, etc.
FilZip 3.06 is a helpful, free program only available for Windows.
UltimateZIP 2.7 File archive manager which includes built-in e-mail support; features support for 19 archive types, file encryption, ZIP repair, creates SFX (self extracting) archives, file span, Explorer shell integration, auto-install, drag ’n drop, file encryption, etc. Advertiser supported.
SimplyZip 1.1 Beta 82 is a multi-archiver program that supports numerous formats, including ZIP, ACE, CAB, RAR, TAR, GZIP, LZH, BZ2 etc. It has additional functions such as ACE/ZIP repair tool, file encryption/decryption, multi-ZIP spanning etc.
Freebyte Zip 2.31 is a more sophisticated successor to HJ-Zip. You can now password-protect and encrypt ZIP entries, add files with relative or absolute path information, recurse into subdirectories, specify the compression level when adding files etc.
WinACE 2.03 was an archiving program for Windows with its own "ACE" compressed archive format and built-in support for other common archive formats types such as ZIP, RAR and CAB.
Winzip 8.0 is an archive utility for Microsoft Windows that creates and extracts ZIP files, along with a degree of support for MS Cabinet (cab), ISO, JAR, TAR, and GZipped files.
Winzip 7.0 is an archive utility for Microsoft Windows that creates and extracts ZIP files, along with a degree of support for MS Cabinet (cab), ISO, JAR, TAR, and GZipped files. Zipped, how ironic.
7-Zip 9.20 Last version of this fine compression program that work with Windows 98se
7Zip v16.02 Latest version of 7Zip for Windows 98. It isn't an installer version. Install v9.20 then extract this over the files in that directory
ARJ 3.08a ARJ32 is disk space saving file archiver with many file management functions.
WinRAR 3.80 Every Windows 98 user should install this.