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;
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; InVircible v6.02 Registrator, (c)1995 ûirogen
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;
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; This little utility simply installs InVircible's registration key onto
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; your hard drive. It is located on the last sector of the first cylinder
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; and is designated by the word 48A5h residing at the end of the sector.
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; After installing this, all current and future copies of InVircible installed
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; on that hard drive will be registered, or licenced rather.
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;
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segment cseg
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assume cs: cseg, ds: cseg, es: cseg, ss: cseg
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cr equ 0ah
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lf equ 0dh
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org 100h
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start:
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lea dx,intro ; display intro / prompt
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call disp
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get_y_n:
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mov ah,8 ; make sure the user wants to
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int 21h
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cmp al,'Y'
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jz yes
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cmp al,'y'
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jz yes
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cmp al,'N'
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jz no
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cmp al,'n'
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jz no
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jmp get_y_n
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yes:
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call disp_al
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mov dh,1
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mov cx,1
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call read_sec ; read boot sector
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mov dh,0
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mov cx,word ptr sec_buf[18h] ; get cylinder per sector
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call read_sec ; read last sector of cyl 0
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mov word ptr sec_buf[1FEh],0A548h ; throw word
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mov ax,0301h ; write new sector to disk
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int 13h
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lea dx,done_msg
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jmp exit
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no:
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call disp_al
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lea dx,abort_msg
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exit:
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call disp
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ret
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read_sec:
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mov ax,0201h
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lea bx,sec_buf
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mov dl,80h
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int 13h
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ret
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disp:
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mov ah,9
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int 21h
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ret
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disp_al:
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mov dl,al
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mov ah,2
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int 21h
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ret
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intro:
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db cr,lf,' ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿'
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db cr,lf,' ³ InVircible v6.02 Registrator, (c)1995 ûirogen [NuKE] ³'
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db cr,lf,' ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄij'
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db cr,lf,' ³ Please distribute all over the known universe ³'
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db cr,lf,' ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ'
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db cr,lf,' WARNING: This software is about to make changes to the last sector'
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db cr,lf,' of cylinfer 0, head 0 of your hard drive. It is unlikely that any'
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db cr,lf,' problems will arise, but be cautious.'
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db cr,lf,' Do you wish to continue [Y/N]? $'
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done_msg db cr,lf,cr,lf, ' InVircible Registrator Complete!$'
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abort_msg db cr,lf,cr,lf, ' InVircible Registrator Aborted By User!$'
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sec_buf:
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cseg ends
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end start
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