-  :  ܽ         CRACK.CHINA ---------------------------------------
  ż: 8853            Local                        : 15 Aug 97  16:43
  : Che Ming                                     Ѷ:      ѻ :  
    : All                                          :                     
  : ƽ DOS4GW ĳ
------------------------------------------------------------------------------
                  -= ƽ DOS4GW ĳ =-

                            Che Ming 

   شһ DOS4GW , һкܹ DOS Extender, ͨ
   WATCOM C/C++ ıģʽĳ򶼴. ôҽûֳ?
   ˻鷳, һѧнܵķʹ :(

   Ҫ:
     0. DLDR ޷
     1. BPX ϵʧЧ
     2. BPINT ϵʧЧ

   ģʽʱй. , ģʽĳͨ
   STUB, DOS EXTENDER, OVERLAY , Щ STUB+OVERLAY 
   һ, DOS EXTENDER Ϊһļ,  DOS4GW; Щһ
   ,  PMODE/W; иɴĽ DOS EXTENDER  OBJ ļֱ
   ,  EOS. ʽ, ʱ趼, 
   DOS4GW Ϊ:

        ִ STUB, ⲿһ V86 ,  STUB 
        DOS EXTENDER, ģʽ,  DOS EXTERDER װ
        OVERLAY - ĳ - ڴ, ʱ
        PROT32 ʽ.

  ô DLDR һ DOS4GW ĳװؽ, еһ?
  ش STUB, ǿʼǶ 16 λ. , һᵽһ
  Ȼ P , ͻֱ DOS4GW,  PROT32 ֵĴ, 
  ȥ :(

  , ڳʱȼ SoftICE/W ͣ PROT32 
  , ҲҪٵĳ, ôϲ, Ѿĳ
   :) ôǶ뵽,  BPX һϵ, »вͣ?
  , ˸߲ҵһϵ, ? »жϵ :(

  ڸղû˳, ʹһ BPINT 21 ȡ򷢳DOSж
  , Ҳᾪķ, û! :(

  һжô?

  , ģʽĳĵַʹ SEGMENT:OFFSET ʽ, 
  SELECTOR:OFFSET, ѡ:ƫʽ; ڶ,  Win95  DOS
  һе, ַǷȫֵ, 뱣ģʽʱ, SELECTOR
  еĵַʱ. ˻ʵģʽʱ,  PROT32 Ķϵ
  ѾʧЧ. Լ SoftICE/W,  U ղĶϵ,
  ( BL ۲һ¶ϵ, Էֵַǰи "#", ˵һ SELECTOR:
  OFFSET ʽĵַ), SoftICE/W  "ǷЧַ"! ôַ
  ˵ϵ? ֻҪ PROT32 ټһ SoftICE/W, ַ
   SELECTOR ͻȷ, ַͻЧ, ϵҲȻ. Ҳ˵
   SoftICE/W еĶϵַַ(Address Content)й, ϵ,
  S () Ⱥܶ SoftICE/W ַйϵ, ò,
  ͻᷢĽ, ʧ.

  BPINT ֮ʧ, ģʽĳʹжϵķʽй. ʵģʽ,
  жʹ IVT (ж), ڱģʽ, ʹ IDT (ж
  ), 仰˵, ͬ INT 21, ʵģʽ, ַΪ 0000:21*4 
   DWORD ַ; ڱģʽ,  IDT 21 . BPINT n ֻ
   0000:n*4 ĵַһ BPX ϵ, ԶԱģʽĳ˵,
  ǲõ! Ѿ PROT32 , νȡ INT 21 ?
  ܼ,  SoftICE/W  IDT һ INT 21 ĵַ: IDT 21. SoftICE/W
  һ SELECTOR:OFFSET ʽĵַ, ǵǰ PROT32  INT 21 
  ַ, ǾͿֹģ BPINT , Ҫ INT 21 AH=2A, Ϳ
  BPX SELECTOR:OFFSET IF AH==2A (е SELECTOR:OFFSET Ǹղ IDT 21 
  ). ע, ϵͬ˳ģʽʱʧ :(

... ȥ, ڹؼ: βֱӽ PROT32 , ʹ
... ǰĶϵЧ? ( Win95 򲻴, ΪЩĵַȫ
... ֵ, ϵЧ)

   STUB,  DLDR ʱ,  DOS EXTERDER
  ʹ CPU 뱣ģʽ,  DOS EXTERDER ( DOS4GW) װ PROT32
  .

  ʵ, ù WATCOM C/C++ ĵ WD ֪, WD ܻԶ STUB 
  , ͣ PROT32 ĵһ!!  DOS4GW 1.97 ˵, 
  ͨ EB 76 (JMP XXXXXXXX)!!!!

   SoftICE/W Ҳͣ? SoftICE/W ûҲ뵽, , 
  INT 3.  SoftICE/W , һ I3HERE, һ, ڸ
  SoftICE/W Ƿ INT 3 Ϊһϵ.  I3HERE ON ʱ, ÿ INT 3 ʱ, 
  ϵж, ʹ SoftICE/W . ôھ SoftICE/W ִ
  I3HERE ON (˹ص, һЩӹǵĳ鷳 :-)
  ôļҵ EB 76, ֱ? ! ̫ EB 76  :(
  ʵ EB 76 ( JMP) Щʲô? Ŷ! ԭһΰȨϢ,  WATCOM
  ĺ :-).  "WATCOM C/C++..." , ֱļ "WATCOM C/C++".
  ܺ, ֻһ! ǰ EB 76, , Ͽĳ CD 03 ( INT 3)

  г, Ү! SoftICE/W , ͣ INT 3 , ھ
  PROT32 ״̬, ζǰĶϵ㶼! ,  CD 03 Ļ EB 76
  :

     E EIP-2 EB 76
     R EIP=EIP-2

  /* 鷳? OK, , ͨôһ:

             MACRO WATCOM="E EIP-2 EB 76; R EIP=EIP-2"

     , Ժֻ WATCOM  */

  G , ǰĶϵ㶼˰ :)

  ʵս:

      ƽ AMU 3.1 ʱ (AMU32.EXE) һ DOS4GW ĳ, ʱ.

  0.  SoftICE/W ִ I3HERE ON
  1.  AMU32.EXE  "WATCOM C/C++", ǰ EB 76 Ϊ CD 03
  2.  AMU32
  3. INT 3 ,  SoftICE/W, ͣ INT 3 
  4. WATCOM /* ָԭ״̬, ҪȽ */
  5. IDT 21 /* 鿴 INT 21 ʵʵַ */
  6. BPX SELECTOR:OFFSET IF AH==2A  /*  IDT 21 ĵַöϵ,
                                       ǵȡǰ */
  7. G         /*  */
  8. ϵ㷢  /* ʱӦһ PROT16 Ĵ */
  9. G @SS:ESP /*  PROT32 ,  AMU32 ,
                  Ҳǵ INT 21 ĵط */
  A.  :-)    /* ߵĹ콲޹, Լ */

   AMU32.EXE , ˽ CD 03 Ļ EB 76; н SoftICE/W 
  I3HERE ر.

  » DOS4GW ĳɱһĪչ.

 -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
 This Document is Copyright by Che Ming - PC Soft 1997  𽫱ļ޸ 
 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
 κν, 밴еַϵ:

 BBS ID: Che Ming
 E-MAIL: hcinfc@pub.sy.lnpta.net.cn

 All Rights Reserved. Aug 17, 1997                    - ȫ -

 BTW: ˭ WIN31 뼼ϻ˭ܽɽʰ, ϵ. лл!

... õ֮, 
-!-  v2.31
 * Origin: Huachu Information BBS Ѷվ (024-3922722) (6:651/240)

-  :  ܽ         CRACK.CHINA ---------------------------------------
  ż: 9054            Local                        : 18 Aug 97  16:54
  : Paul Gao                                     Ѷ:      ѻ :  
    : All                                          :                     
  : Re: ƽ DOS4GW ĳ
------------------------------------------------------------------------------
 -=>ԭ Che Ming  All <=-

 CM> -= ƽ DOS4GW ĳ =-
 ˵һ, ʵ Che Ming ˵Խе DOS Extender ,
  BORLAND  RTM, PHRALP  286|DOS Extender ȵ...... :)

>>>                     ֪Ũ  ֪
...                   Paul Gao,  E-mail: paulgao@iname.com
<<<              Home Page: http://www1.sczgptt.net.cn/paulgao

... http://www1.sczgptt.net.cn/paulgao - , ܽ,  COOL ǩ! :)
-!-  v2.31
 * Origin: Huachu Information BBS Ѷվ (024-3922722) (6:651/240)
