Autorun is a freeware software that helps to create CDs with
AutoPlay feature. The term AutoPlay now describes a (similar)
Windows XP feature that launches an application to display picture,
music or video content on removable devices.Autorun allows to
create AutoPlay CDs for any type of files,ie .exe,.htm,.doc,.pps
etc.. Autorun also allows to set a splash screen , which will
be displayed when the CD is inserted in to the drive.
Product : Autorun.exe
Version : 1.0.0
Licence : Freeware
Author : Satheesh
Kumar A P
guide to Autorun
1. Create a plain text file AUTORUN.INF in the root directory
of the CD.
2. Make following entries in the AUTORUN.INF file.
open=Autorun.exe filename splashimage
here, filename refers to the path (relative to the path
of Autorun.exe) of the file which is to be played or executed
automatically. splashimage (optional) is the path (relative
to the path of Autorun.exe) of the image file which is to be displayed
when the CD is inserted in to the drive. And the iconfilename
specifies the path (relative to the root of the CD) of the icon
, which is to be set as the icon of the CD drive.
Note: By using relative path names you can place Autorun.exe,
filename,spalshimage etc. are anywhere in the CD. relative
path names for filename and splashimage must
be relative to the path of Autorun.exe. Other entries can have
relative path names based on the root of the CD. If you do not
specify ane splash image then it will not show any splash screen.
3. Now you can burn the CD. Make sure that each files are kept
in their appropriate positions.
Following example shows how to create an Autoplay CD for an html
open=Files\Autorun.exe ..\index.htm splash.jpg
here ,the Autorun.exe and splash.jpg are placed
in a directory named Files in the root directory of the CD. index.htm
and icon.ico are placed in the root directory of the CD.
Use the Windows Notepad application to edit plain text files
(it is in the Start+All Programs+Accessories menu).
Your CD users may have switched off AutoRun. This might be because
they are concerned about viruses. Also, if they press the Shift
key down while inserting the CD, AutoRun is disabled. In Windows
NT4, 2000 and XP systems, only Administrators and Power Users
can use AutoRun. AutoRun must be enabled to AutoPlay CDs. (See:
Enabling AutoRun )
There is no way to force your users to use AutoRun. It is therefore
good practice to provide instructions so that users know how to
start your CD, eg tell them to open file index.htm in
their browser. These instructions are also required if your CD
might be viewed by non-Windows users.
Autorun runs a program when a CD is inserted into a Windows computer.
If Windows finds a file called AUTORUN.INF in the root directory
of the CD then it follows the instructions in this file to run
a program. In the above example Windows executes Autorun.exe
with the parameters specified . Autorun.exe will show
a splash screen by using splash.jpg. Then it plays the
Autorun uses the default file associations to display the file.
Windows associates a viewer program with each file type. For .HTM
and .HTML web pages, the viewer program will be your default browser.
If a user does not have a viewer for your file type then it cannot
be displayed until a viewer is installed. For example, if you
are trying to show a PDF file, the user must have Adobe™
Acrobat Reader or equivalent installed.
If a viewer is not available, the Autorun simply ignores Autoplay.
is Autorun needed?
Until recently, it was not possible for Windows to AutoRun a
file rather than a program.
OK, that's not strictly true: you could use the following AUTORUN.INF
to show web page index.htm
However, if you do this, Windows displays a DOS box briefly,
which looks nasty. (And start might not be available on some systems.).If
you are only targeting recent Windows systems, then you can use
the shellexecute command to open a file without a flickering DOS
What does Autorun do then?
Autorun overcomes the above problems. It shows a splash screen
and displays your file. Autorun works in all Windows systems.
AutoRun on your computer
To test AutoRun you need to have it enabled on your computer.
A registry setting can be used to disable AutoRun. Click Start+Run
then type in regedit. Select Edit+Find and type in NoDriveTypeAutoRun.
This value should be found in this key: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
The NoDriveTypeAutoRun value should be hexadecimal 95 if AutoRun
is enabled on all CDs, or B5 if disabled for CDs. (If you want
to test AutoRun on a floppy disk, set this value to 91.) You may
need to change more than one instance of NoDriveTypeAutoRun in
the registry. You usually need to reboot for a new value to take
In Windows 95/98/Me the NoDriveTypeAutoRun value is displayed
as 95 00 00 00. In Windows NT4, 2000 and XP this value is displayed
as 0x00000095 or hexadecimal 95. If you modify the NoDriveTypeAutoRun
value make sure it is still in the correct format.
More ways to disable AutoRun
There are two other - uncommon - ways of disabling AutoRun.
The NoDriveAutoRun registry value is in the same key as NoDriveTypeAutoRun.
Each bit represents each drive, so hexadecimal 01 disables AutoRun
for floppy drive A, 04 disables AutoRun for drive C, 10 disables
AutoRun on E. Values can be combined, so 19 disables AutoRun on
E, D and A.
If either NoDriveTypeAutoRun or NoDriveAutoRun specify that AutoRun
should be disabled for a drive, then it is disabled for that drive.
Finally, programmers might like to know that AutoRun can also
be disabled by the program that controls the foreground window
by handling the "QueryCancelAutoPlay" Windows message.
Please consult the Microsoft documentation for more details.
You can set further options in the AUTORUN.INF file.
You can provide an icon for the CD drive in My Computer by adding
a line that set the icon command to an .ICO file.
You can set a text label for the drive using the label command.
open=Autorun.exe seminars.pps spalsh.jpg
Use a series of shell commands to specify one or more entries
in the pop-up menu that appears when the user right-clicks on
the CD icon. (The shell entries supplement the open command.)
This example shows how to add two entries to the menu (Read me
- to display the README.TXT file in Notepad, and Seminar Reports
- to show HTML file Seminars.htm):
Any verb string (without spaces) can appear after "shell\";
"readme" and "seminar" were used above.
On one line, append "\command=" followed by the command
you want to run. On the next line, append "=" and the
text that appears in the menu. Put an ampersand character (&)
before the character that should be used as the menu item short-cut
CDs - music and data
Enhanced CDs contain both audio and computer data, so they can
be played on audio equipment and used on a computer. (Enhanced
CDs are also known as CD Extra or CD Plus CDs.) Note that the
Mixed-mode CDs also contain audio and data, but these may not
be playable on audio equipment.
Note that not all Windows computers will recognise the data
on an Enhanced CD, although the audio is always seen. (Windows
Me, 2000 and XP usually seem to recognise Enhanced CD data, but
it may be drive dependent.) Therefore, do not use this format
if you want to be sure that your data is available. If the Enhanced
CD data does not have an AUTORUN.INF file, then Windows will usually
start playing the CD when it is inserted. However, if an AUTORUN.INF
is present, then Windows will follow the instructions in there
rather than playing the CD. The data on an Enhanced CD can only
use short filenames or folder names. Long filenames will be truncated
to an "8.3" form, eg "index.html" may appear
Copyright © 2005 Satheeesh Kumar A P