I cannot find the following on the WIN98SE2ME website. Did I miss it, or is it missing?

Add ZIP-compression from Win ME to Win 9x or 2k
You need the following files from Win ME: DZIP32.DLL, DUNZIP32.DLL and ZIPFLDR.DLL. Copy to %windir%\system and register the last of these DLLs with regsvr32 zipfldr.dll.
(From a German PC magazine)

Best regards
allesok

ZIPFLDR.DLL for WinME or the 1 for Plus! 98 [both install same functions] can be installed on 98FE/98SE even without Plus! 98 pack:

* Microsoft Windows ME ZIP Decompression Unchecked Buffer + Recoverable
Compressed Folders Passwords ZIPFLDR.DLL Security Vulnerability Fix:
http://www.microsoft.com/technet/security/...n/ms02-054.mspx
Direct download [270 KB, English]:
http://download.windowsupdate.com/msdownlo...6BFCFC147E1.EXE
More info:
http://support.microsoft.com/?id=329048
Install PowerArchiver [nag shareware]:
http://www.powerarchiver.com/
Extract the files from the EXE [see link above].
Copy ZIPFLDR.DLL, DZIP32.DLL + DUNZIP32.DLL to %windir%\SYSTEM [usually C:\WINDOWS\SYSTEM].
Then run from a DOS box:

%windir%\SYSTEM\REGSVR32 /S %windir%\SYSTEM\ZIPFLDR.DLL

Done.
This ME fix is also found here:
http://www.mdgx.com/web.htm#WME

Or install zipfldr.dll for Plus! 98 [also found here]:
http://www.mdgx.com/web.htm#98SE

* Microsoft Plus! for Windows 98/98 SP1/98 SE ZIP Decompression Unchecked
Buffer + Recoverable Compressed Folders Passwords ZIPFLDR.DLL Security
Vulnerability Fix:
http://www.microsoft.com/technet/security/...n/ms02-054.mspx
Direct download [268 KB, English]:
http://download.microsoft.com/download/WIN.../329048USA8.EXE
More info:
http://support.microsoft.com/?id=329048
How to install Fixed ZIPFLDR.DLL on Windows 98/98 SP1/98 SE without MS Plus!
installed [thank you miko!]:
1. Copy + paste text between cut & paste lines below in Notepad -> save as
ZIPFLDR.REG (example) -> (double)-click on ZIPFLDR.REG to merge into
Registry:

-----Begin cut & paste here-----
REGEDIT4

[HKEY_LOCAL_MACHINE\Software\Microsoft\Plus!98\Setup\ZipFldr]
"Installed"="1"

------End cut & paste here------

2. Install ZIPFLDR.DLL Fix (see above).

FYI:
Please note that zipfldr.dll adds only basic [very primitive] ZIPping/unZIPping functions.
I suggest to install a fully-fledged ZIPper/unZIPper [most r free(ware)]:
http://www.mdgx.com/toy.htm#ZIP

Hope this helps.

reason why this registry entry is required is because the Q329048 Win98/Plus98 patch detects this. If the registry entry doesn't exist or has a different value the patch will not work. If it is there then the patch will install the updated files.

plus if you already have a ZIPping/UNZIPping utility (freeware or shareware) like Winzip or InfoZip, you do not need the ZIP-compression feature from MS [in Microsoft-speak, MS calls it the Compressed Folders feature].