最近看到一些報導、雜誌都在說直接將Win2K更新到SP3，
那不知那位知道"如何將NT4更新至IE5以上和SP6a？"

參考一下吧...

Install SP 6a with High Encryption Internet Explorer

Problem description:
===============
Cannot Install SP 6/6a with High Encryption Internet Explorer

Reason:
======
This issue occurs because the Schannel.dll file that is installed by
Microsoft Internet Explorer High Encryption Pack and Internet Explorer 5.5
cannot be overwritten by the service pack installation program.

Internet Explorer 5.5 includes 128-bit encryption by default because of
the United States government's recent decision to allow companies to
export products that use strong, 128-bit encryption.

Windows NT 4.0 Service Pack 6 and 6a were released before this decision
was made. Therefore, localized versions of Service Pack 6 and 6a are
40-bit versions. 40-bit versions of these service packs detect higher
encryption levels and do not allow themselves to be installed.

Solution/Workaround:
===============
Download sp6a(40bit) for chinese( Traditional ).
unextract sp6a with /x parameter, will find a update.inf file.

After remove the following sections of the update.inf file in Service Pack
installation package, you can install service pack without checking
encryption mode and also the original low encryption files will replace
the high encryption files after applied the service pack.
CheckSecurity.System32.files=11 ; %windir%\system32 (warn if 40-bit
replacing 128-bit) CheckSecurity.Drivers.files=12 ;
%windir%\system32\drivers (warn if 40-bit replacing)

[Check.For.128.Security]
; Although this section is structured as an "Install" section with
; "CopyFiles" sections, it only causes these files to be checked, not
; copied. Any files in these sections must also be specified in the
; appropriate "CopyFiles" sections of a real "Install" section to
; cause them to be copied.
CopyFiles = CheckSecurity.System32.files
CopyFiles = CheckSecurity.Drivers.files

[CheckSecurity.System32.files]
SCHANNEL.DLL
SECURITY.DLL
NTLMSSPS.DLL

[CheckSecurity.Drivers.files]
NDISWAN.SYS

save this file and execute update.exe install service pack 6a

最初由 vino 發表
參考一下吧...

Install SP 6a with High Encryption Internet Explorer

Problem description:
===============
Cannot Install SP 6/6a with High Encryption Internet Explorer

Reason:
======
...


這個應該是不要讓SP6a去檢查加密的東東吧！
我想我寫得不清楚吧 ^^"
我的意思是安裝完NT4，直接就是SP6，不要再另行安，
希望能跟現在大家討論的裝完Win2K，不用再裝SP3是一樣的意思 ^^