I'm new for DOS.I want to change the attribute of all the folders in my USB flash drive as System Folders. But I don't want to change the attribute of the files inside those folders. Can somebody tell me a command for that.

SYS command can not change attributes of folders. It works with file attributes, only.

In general dos is not able to change attributes of folders, such a possibility came with the Windows GUI. Still, the system attribute of a folder requires disk editor, or some other special application.

In order to get a folder with a system attribute set without additional application, the simplest solution would be to make a copy of some other system folder. Luckily, Explorer is able to change a system folder name.

Attribute of folders can be changed using command prompt. Ex:- the command "attrib +s +h d:\myfolder" will change the attribute of "myfolder". The command "attrib +s +h d:\myfolder\*.* /s /d" will change the attribute of all the files and sub folders in "myfolder". But I want to change the attribute of folders only. Please help me.

Interesting, it does work, indeed.

It is not possible to change multiple folders arrtibutes with a single command. The DOS does not process folders with wildard based operations. It is necesary to run a separate command for every folder.

It is possible to do it in Windows 2000/NT system. But this will require a small batch program.

In case of a Windows 9x system a VB script could do it, I think.

/D does 'process folders as well'

So

attrib +s d:\myfolder\*.* /s /d

attrib -s d:\myfolder\*.* /s

should set the system flag for all folders, and reset it for all files.

/D does 'process folders as well'

So

attrib +s d:\myfolder\*.* /s /d

attrib -s d:\myfolder\*.* /s

should set the system flag for all folders, and reset it for all files.

With Windows 2000, yes. With Windows 98, no.

The /d switch is not supported in Windows 9x.

Ah, I see.

It's not dos, but next code should work:

var system = 4;
var hidden = 2;

function DoFolder( folder )
{
	var fso = new ActiveXObject("Scripting.FileSystemObject");	
	f = fso.GetFolder(folder);
	f.attributes  |= system;
	f.attributes  |= hidden;

	var fc = new Enumerator( f.SubFolders );

	for (; !fc.atEnd(); fc.moveNext() )
   	{
		DoFolder( fc.item() );
   	}
}

DoFolder( "D:\\MyFolder" );

Copy the code, save it as a .js file, and doubleclick on it. It should set the system and hidden attribute of all subfolders of D:\MyFolder, including MyFolder itself. Have a look at the double \ in "D:\\MyFolder". This is necessary for all backslashes in your path.

Ooooooh my dear friend Mijzelf, your script is a magic and that was what i was needed. please tell me the way of unhide the folders.Thanx again and again my friend....

please tell me the way of unhide the folders

The line

f.attributes |= hidden;

should be changed to

f.attributes &= ~hidden;

which removes the hidden flag.

Other possible flags are:

1 ReadOnly

2 Hidden

4 System

8 Disk drive volume label. Attribute is read-only.

16 Directory. Attribute is read-only.

32 Archive

64 Shortcut. Attribute is read-only.

128 Compressed. Attribute is read-only.

Thank u very much for helping me Mijzelf. My problem is ok. Thankx again...