N Raj

ok... I might be becoming redundant soon lol, vista and programming is my main forte as I mentioned above but lets see what we can do while I am still here :)

Lets start by double checking you are running as administrator and that auto play is running, vista can be a real pain!!
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Ensure that Shell Hardware Detection service is running

Type “service.msc” in Start Search to run Services console. Locate Shell Hardware Detection, and ensure that the “Service Status” is Running, and “Startup Type” is Automatic. If not, start the service and change the Startup Type setting accordingly.
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Ensure that CD-ROM AutoRun is not disabled in registry

For users facing AutoRun/AutoPlay doesn’t work when insert a disc into optical drive, run Registry Editor (regedit), and navigate to the following registry subkey:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\CDRom

Locate the AutoRun registry value in the right pane, and check that the value data for AutoRun is set as 1 (one), which is enabled. If it is 0 (zero), which mean disabled CD-ROM or DVD-ROM drive AutoRun process, re-enable the AutoRun by changing the value to 1.
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Ensure that correct NoDriveTypeAutoRun and/or NoDriveAutoRun policy value is set

NoDriveTypeAutoRun registry key is used by Group Policy to configure whether to disable the Autoplay feature on all drives of the type specified. To check this setting, run Registry Editor (regedit), and navigate to the following registry key:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer

or (note that above registry value, if exists, will always supersede the below user-specific key),

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer