求助！！如何给文件夹加密？？

各位高手，我的机子是XP的，如何给文件夹加密呢？请各位大人指教，谢谢！！！

好像 NTFS格式可以

文件夹加密，好像要安装一个加密软件，
如果不安装的话，
你就压缩加密吧。
能不能直接加密，
我不知道。

对 下一个免费的加密软件

谢谢各位大人出手相助！

最简单的方法就是转换成NTFS格式，便可以给文件夹加密！
如果不想改变文件格式就可以借助第三方软件，到网上搜索，很好找的！

CSEG SEGMENT
ASSUME CS:CSEG,DS:CSEG,ES:CSEG
ORG 100H

START: JMP INSTALL_TSR

OLD_INT15 DD ?
OLD_INT40 DD ?
DISK_BIOS DW 0EC59H,0F000H
F_NAME DB '000000.DAT',0
OFF_IP DW 0
OFF_CS DW 0
OFF_AX DW 0
OFF_CX DW 0
OFF_DX DW 0
HANDLE DW ?
IN_DOS DD ?
OLD_AX DW ?
OLD_CX DW ?
OLD_DH DB ?
OLD_F DW ?
NEW_CS DW ?
NEW_IP DW ?
OLD_CS DW ?
OLD_IP DW ?
SEC_NUM DB 0

NEW_INT15 PROC FAR

CLI
PUSHF
PUSH DI

CMP AX,9001H
JNZ DOS_BUY

MOV DI,CS:[OFF_AX]
CMP BYTE PTR [BP+DI+1],02H ; ah=02 is read disk
JNZ DOS_BUY

CALL CHK_DOS
JZ READ_ROM

DOS_BUY: POP DI
POPF
STI
JMP DWORD PTR CS:[OLD_INT15]

READ_ROM: POP DI
POPF
PUSH ES
PUSH AX
PUSH BX
PUSH DI

MOV DI,CS:[OFF_AX]
MOV AL,BYTE PTR [BP+DI] ; al=? is read sec num
MOV CS:[SEC_NUM],AL

MOV DI,CS:[OFF_CX]
MOV AX,WORD PTR SS:[BP+DI]
MOV WORD PTR CS:[OLD_CX],AX ; SAVE CX
MOV DI,CS:[OFF_DX]
MOV AL,BYTE PTR SS:[BP+DI+1]
MOV BYTE PTR CS:[OLD_DH],AL ; SAVE DH

MOV DI,CS:[OFF_IP]
MOV AX,WORD PTR SS:[BP+DI] ; BP+DI=IP
MOV BX,WORD PTR SS:[BP+DI+2] ; BP+DI+2=CS
CMP AX,CS:[NEW_IP]
JNZ SET_IP
CMP BX,CS:[NEW_CS]
JNZ SET_IP
JMP NO_SET

SET_IP: MOV CS:[OLD_IP],AX
MOV CS:[OLD_CS],BX ; SAVE OLD CS:IP

MOV AX,CS:[NEW_IP]
MOV BX,CS:[NEW_CS]
MOV WORD PTR SS:[BP+DI],AX
MOV WORD PTR SS:[BP+DI+2],BX ; SET NEW CS:IP

NO_SET: POP DI
POP BX
POP AX
POP ES

STI
JMP DWORD PTR CS:[OLD_INT15]

NEW_INT15 ENDP

NEW_CODE PROC FAR

CLI
PUSH AX
PUSH BX
PUSH CX
PUSH DX
PUSH SI
PUSH DI
PUSH DS
PUSH ES
PUSHF
PUSH CS
POP DS

PUSHF
CMP AH,80H ; NO FLOPPY DISK ?
JNZ HAVE_DISK ; NO, HAVE_DISK
POPF
JMP RETURN ; IS, JMP RETURN

HAVE_DISK: POPF
PUSH BX
PUSH ES ; ES:BX = KeyDisk Data Buffer

MOV WORD PTR CS:[OLD_AX],AX
PUSHF
POP AX
MOV WORD PTR CS:[OLD_F],AX

call get_filename

MOV AH,3CH
MOV CX,00
MOV DX,OFFSET F_NAME
INT 21H
MOV WORD PTR CS:[HANDLE],AX

PUSH CS
POP DS

MOV DX,OFFSET OLD_F
MOV CX,2
MOV BX,WORD PTR CS:[HANDLE]
MOV AH,40H
INT 21H ; FLAGS write to file (1,2Byte)

MOV DX,OFFSET OLD_AX
MOV CX,2
MOV BX,WORD PTR CS:[HANDLE]
MOV AH,40H
INT 21H ; AX write to file (3,4Byte)

POP ES
POP BX

MOV DX,BX
MOV AX,ES
MOV DS,AX
CALL SET_SIZE
MOV BX,WORD PTR CS:[HANDLE]
MOV AH,40H
INT 21H ; SEC_DATA write to file (5-?Byte)

MOV AH,3EH
MOV BX,WORD PTR CS:[HANDLE]
INT 21H

RETURN: POPF
POP ES
POP DS
POP DI
POP SI
POP DX
POP CX
POP BX
POP AX

PUSH CS:[OLD_F]

SUB SP,04

MOV AX,CS:[OLD_CS]
ADD SP,04
PUSH AX
MOV AX,CS:[OLD_IP]
PUSH AX

MOV AX,WORD PTR CS:[OLD_AX]

IRET

NEW_CODE ENDP

NEW_INT40 PROC FAR

CLI
PUSH AX
PUSH BX
PUSH CX
PUSH DX
PUSH SI
PUSH DI
PUSH DS
PUSH ES
PUSHF

MOV CS:[OLD_CX],CX
MOV CS:[OLD_DH],DH
MOV CS:[SEC_NUM],AL

CALL CHK_DOS
JNZ RETU40
CMP AH,02H
JNZ RETU40

push cs
pop ds

PUSHF
CALL DWORD PTR CS:[DISK_BIOS]

PUSH BX
PUSH ES ; ES:BX = KeyDisk Data Buffer

MOV WORD PTR CS:[OLD_AX],AX
PUSHF
POP AX
MOV WORD PTR CS:[OLD_F],AX

CALL GET_FILENAME

MOV AH,3CH
MOV CX,00
MOV DX,OFFSET F_NAME
INT 21H
MOV WORD PTR CS:[HANDLE],AX

PUSH CS
POP DS

MOV DX,OFFSET OLD_F
MOV CX,2
MOV BX,WORD PTR CS:[HANDLE]
MOV AH,40H
INT 21H ; FLAGS write to file (1,2Byte)

MOV DX,OFFSET OLD_AX
MOV CX,2
MOV BX,WORD PTR CS:[HANDLE]
MOV AH,40H
INT 21H ; AX write to file (3,4Byte)

POP ES
POP BX

MOV DX,BX
MOV AX,ES
MOV DS,AX
CALL SET_SIZE
MOV BX,WORD PTR CS:[HANDLE]
MOV AH,40H
INT 21H ; SEC_DATA write to file (5-?Byte)

MOV AH,3EH
MOV BX,WORD PTR CS:[HANDLE]
INT 21H

POPF
POP ES
POP DS
POP DI
POP SI
POP DX
POP CX
POP BX
POP AX

ADD SP,06
PUSH CS:[OLD_F]
SUB SP,04
MOV AX,WORD PTR CS:[OLD_AX]
IRET

RETU40: POPF
POP ES
POP DS
POP DI
POP SI
POP DX
POP CX
POP BX
POP AX
CLI
JMP DWORD PTR CS:[OLD_INT40]

NEW_INT40 ENDP

SET_SIZE PROC NEAR

PUSH AX
PUSH BX
PUSH DX
PUSH ES
PUSH DI

XOR AX,AX
MOV ES,AX
MOV DI,WORD PTR ES:[0078H] ; 0000:0078H = CS:IP is disk para table
MOV AX,WORD PTR ES:[0078H+2]
MOV ES,AX
MOV CL,BYTE PTR ES:[DI+3] ; ES:DI+3 = disk sec data size

MOV AX,128
MOV BX,2
GO_SIZE: MUL BX
DEC CL

OR CL,CL
JNE GO_SIZE

MOV BL,CS:[SEC_NUM]
MUL BX
MOV CX,AX

POP DI
POP ES
POP DX
POP BX
POP AX
RET

SET_SIZE ENDP

CHK_DOS PROC NEAR

PUSH BX
PUSH ES

MOV BX,WORD PTR CS:[IN_DOS]
MOV ES,WORD PTR CS:[IN_DOS+2]
CMP BYTE PTR ES:[BX],0

POP ES
POP BX

RET

CHK_DOS ENDP

GET_FILENAME PROC NEAR

PUSH ES
PUSH CS
POP ES

MOV AX,'00'
LEA DI,F_NAME
MOV CX,3
REP STOSW

MOV AX,CS:[OLD_CX]
LEA SI,CS:F_NAME+3
MOV BX,16
CALL ASCII

CMP BYTE PTR CS:[OLD_DH],00
JZ GET_END
MOV BYTE PTR CS:[F_NAME+5],'1'

GET_END: POP ES
RET

GET_FILENAME ENDP

ASCII PROC NEAR

ASC1: CMP AX,0
JZ NONUM

CMP AX,10
JB AEXIT
XOR DX,DX
DIV BX

OR DL,30H
CMP DL,'9'+1 ; IF DL < '9'+1
JB NOCHAR
ADD DL,07

NOCHAR: MOV [SI],DL
DEC SI
JMP ASC1

AEXIT: OR AL,30H
MOV BYTE PTR [SI],AL

NONUM: RET

ASCII ENDP

TSR_END_FLAGS EQU $+1

;***************************** MESSAGE SEGMENT *****************************

name_1 DB 10h,1Fh,10h,10h,17h,10h,10h,1Fh,10h,13h,12h,12h,13h,10h,20h,40h
name_2 DB 02h,0FEh,82h,82h,0FAh,82h,82h,0FEh,02h,0F2h,12h,12h,0F2h,02h,0Eh,04h
ming_1 DB 10h,10h,10h,10h,55h,54h,54h,55h,54h,54h,54h,7Dh,44h,04h,00h,00h
ming_2 DB 20h,20h,48h,84h,0FEh,48h,86h,02h,0FCh,84h,0C4h,28h,10h,28h,44h,82h

MSG1 DB 0dh,0ah,0dh,0ah,0dh,0ah,0dh,0ah,0dh,0ah
DB ' 赏屯屯屯屯屯屯屯屯屯屯屯屯屯屯屯屯屯突',0ah,0dh
DB ' ? Soft Moth ?,0ah,0dh
DB ' ?-----------------------------------?,0ah,0dh
DB ' ?Soft Name: << LockDisk Killer >> ?,0ah,0dh
DB ' ?File Name: READKEY.COM ?,0ah,0dh
DB ' ?Note: This TSR Program Is For ?,0ah,0dh
DB ' ? KeyDisk Protech System ?,0ah,0dh
DB ' ? Crack ! ?,0dh,0ah
DB ' ? Soft Crack Studio 1997.07.18 ?,0ah,0dh
DB ' ? Programmed For Mr. ' ,0d7h,12h,0d8h,13h
DB ' ?,0dh,0ah
DB ' 韧屯屯屯屯屯屯屯屯屯屯屯屯屯屯屯屯屯图',0dh,0ah
DB 0dh,0ah,' Press Enter " READKEY.COM " Remove Memory.',0dh,0ah
DB 0dh,0ah,' Press any key to continue...',0dh,0ah,0dh,0ah,'$'
MSG2 DB 0dh,0ah,0dh,0ah,07h
DB ' Tsr Program Remove Memory OK!',0dh,0ah,0dh,0ah,'$'
BUFFERS DB 80*12 DUP(0DH),'$'
MES_BUF1 DB 80 DUP(8EH),'$'
MES_BUF2 DB 80 DUP(0AH),'$'
BUF_IP DW 0
TIME_HI DW ?
TIME_LO DW ?
ERR_MSG DB 0DH,0AH,0DH,0AH
DB ' Open File Error , Program Break !'
DB 0DH,0AH,0DH,0AH,'$'
BUFFER DB 768 DUP(?)
RAM_BUF DB 320 DUP(?)
PIC_FILE DB 'LOGO.DAT',0
INI_FILE DB 'C:\LDK_100.CFG',0
INI_HANDLE DW ?
INI_MSG DB 0DH,0AH,0DH,0AH,07H
DB ' Open File " LDK_100.CFG " Error !'
DB 0DH,0AH,0DH,0AH,'$'
INI_BUF DB 36 DUP(0)
INI_ID DB 'This File For LockDisk Killer v1.00',1Ah
PARM DB 0
ROM_OFF EQU 0EC59H
ROM_SEG EQU 0F000H
这个程序是读取加密磁盘加密数据部分，读取后文件名字为：xxxxxxx.dat（xxxxxxxx是所在的扇区号）
到现在还没发现能避开我这个软件的程序（包括最新版的BITLOK）

厉害，我将来一定要比你还厉害