Exec & parameter in ASM

Do you know how to execute a program and to access to the programmer parameters from an ASM program?
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rbrConnect With a Mentor Commented:
For executing a other program use int 21h function 4bh subfunction 0

ES=segmentadress of parameterblock
BX=offsetadress of parameterblock
DS=segmentadress of the programname you want to execute
DX=offsetadress of the programname

The parameterblock must contain the following.
Byte 0-1: Segment of enviromentblock
Byte 2-3: Offset of command-parameters
Byte 4-5: Segment of command-parameters
Byte 6-7: Offset of 1st FCB
Byte 8-9: Segment of 1st FCB
Byte 10-11: Offset of 2nd FCB
Byte 12-13; Segment of 2nd FCB.
If Byte 0-1 are 0 the enviroment block of the calling program is used.
If you don't need any FCB Byte 6-13 can have any value you want.
The programname must be a string with a 0 at the and. No wildchars are
allowed. The command-paramters must have the following form.
Byte 0: Length of the command-paramters.
Byte 1-Length: command-paramters.
Bate Length+1: Carriage Return (ASCII 13). Do not cont this character to
the length.
To get the paramters use int 21h function 62h. The returnvalue in BX is the
segment adress of the PSP of the current program. At the adress BX:0080
are the number of bytes of your parameter block and starting at BX:0081
you can read the parameters of your program.
kilobugAuthor Commented:
Thanx anyway, but this is only a part of the question...

  I will explain what I exactly want:
* To make a DOS ASM program which can execute other programs (EXE and COM).
* To make a DOS ASM program which can access to the parameter given on the command line.(This is easier, the main thing is the execution).
Here is my solution to copy command line option string (from PSP to a PSP buffer var)

.model large
.stack 200h
psp dw 0
pspbuffer db 128 dup (0)
        push es
        mov ax,@data
        mov ds,ax
        pop es
        mov ax,es
        mov psp,ax
        mov bp,80h
        mov cx,es:[bp]
        mov ch,0
        inc cx
        mov bx,bp
        sub bx,80h
        mov ax,es:[bp]
        mov pspbuffer+bx,al
        inc bp
        loop psploop
        mov ax,4c00h
        int 21h

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