gcc in windows and dos

[Fenglou Mao]

Dear all,
     Where can I find gcc/egcs for windows3.1/windows95/windows98/dos?

Sincerely Yours,

FengLou Mao
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ADD:Mr. FengLou Mao
    Peking University
    BeiJing
    P.R.China
Tel:86-10-62751490
Fax:86-10-62751725