[need help] unzip the binary file copy /b in bat/vbs

[Fareast187]

hello everyone,

here i have a problem to unzip the binary file with "copy /b" in my batch file program...

ok i will explain more detail..

first i do :-

Code: [Select]

copy /b *.jpg + *.zip  result.jpg
then i rename "result.jpg" to "result.zip"

after that i use my batch file to unzip, it won't unzip the binary file... but if i zip normally without use binary file it can be unzip...
i use the code below..(just look at the "echo .......... >> unzip.vbs")

Code: [Select]

copy "kin\just\result.zip" "c:\result.zip"
md "c:\cepat"

echo pathToZipFile="c:\result.zip" >> unzip.vbs
echo extractTo="c:\cepat" >> unzip.vbs
echo.
echo set sa = CreateObject("Shell.Application") >> unzip.vbs
echo set filesInzip=sa.NameSpace(pathToZipFile).items >> unzip.vbs
echo sa.NameSpace(extractTo).CopyHere(filesInzip)  >> unzip.vbs
start unzip.vbs

ping localhost -n 4 >nul
copy c:\cepat "kin\just"
ping localhost -n 4 >nul
del "kin\just\result.zip" /q /f
ping localhost -n 4 >nul
del "unzip.vbs" /q /f
ping localhost -n 2 >nul
del "c:\cepat\*" /q /f
ping localhost -n 4 >nul
rmdir "c:\cepat"  /q
ping localhost -n 4 >nul
del "c:\result.zip" /q /f
thank in advance for your help....

[polle123]

I see that you are trying to hide files within a photo.

I would avise using .rar files for this, instead of .zip, that fixed my problem back in the days

And you shouldn't use a batch file to unzip. after renaming it to result.zip you have to right click and unzip from there

[mroilfield]

then i rename "result.jpg" to "result.zip"

You do realize that just remaining the file from "result.jpg" to "result.zip" doesn't make it a zipped file right? If it isn't an actual zipped file then no matter what you do you won't be able to "unzip" it.

[Salmon Trout]

You do realize that just remaining the file from "result.jpg" to "result.zip" doesn't make it a zipped file right? If it isn't an actual zipped file then no matter what you do you won't be able to "unzip" it.

Read his post. You can use the COPY command with the /b switch to join a jpg and a zip together into a third file, which you can give any extension you like. If you give it a .jpg extension, a jpeg viewer will see the jpg part and display it normally. It will not see the zip part. If you change the extension to .zip, an archive manager (Winzip, WinRar, etc) will see the zip part, but not the jpg, and process it normally. Thus you could hide a zip in a jpg or vice versa.

What he does not seem to realise is that using wildcards and copying multiple jpegs and then multiple zips will not result in multiple hidden but accessible files. Only the first jpg and the first zip will be available, and only to a Zip program.

Also that unlike proper Zip archive apps, the VBS unzip routines

1. Are really "copy from compressed folder" routines, and require compressed folders to be enabled.
2. Unlike WinZip, etc, won't like the fake "compressed folder" (zip file) resulting from the copy, and will copy nothing.

[Fareast187]

I would advise using .rar files for this, instead of .zip, that fixed my problem back in the days

thank you very much...my problem solve now....i use RAR file and everything solve....
actually im do a program security call  "4 gate folder security"

like this :-
first folder do a basic security like hidden folder or partition drives
second folder do medium security like change extension of folder
third folder do hard security like desktop.ini write extension of control panel(every time someone click it, it will go to control panel, if someone rename the file it will never change)
forth folder do very hard security like hidden file inside jpg

maybe next time i'll add one more security with make a password in the rar file..