Win7下Ctex 2.4.6不能编译

错误：

Creating "latex.fmt"...
"tex.exe" --ini --interaction=nonstopmode --halt-on-error --alias latex latex.
ltx \dump
This is TeX, Version 3.141592 (MiKTeX 2.4) (INITEX)
(C:\CTeX\texmf\tex\latex\base\latex.ltx
(C:\CTeX\texmf\tex\latex\00miktex\texsys.cfg)
./texsys.aux found


\@currdir set to: ./.


Assuming \openin and \input
have the same search path.


Defining UNIX/DOS style filename parser.

catcodes, registers, compatibility for TeX 2,  parameters,

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! You are attempting to make a LaTeX format from a source file
! That is more than five years old.
!
! If you enter <return> to scroll past this message then the format
! will be built, but please consider obtaining newer source files
! before continuing to build LaTeX.
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

! LaTeX source files more than 5 years old!.
l.545 ...aTeX source files more than 5 years old!}
                                                 
No pages of output.
Transcript written on latex.log.
initexmf: tex.exe failed on "latex.ltx".

解决方法：

把系统时间调到2005年，编译一次后，再把系统时间调回，以后就好使了。