Depends on laptops age and OS... If your laptop is Windows 98 SE * or newer with USB ports you can use a IDE to USB cable to plug your CD Rom into the USB port of the laptop, but you will also need a power source for the drive. It would be easier to not use that drive from the desktop but to buy a new external CD Rom drive for around $40 or so.
* Windows 98 has very limited USB drive interface support.
All newer OS should mount without a problem.
*** If you need to use this drive at boot to install a clean install of OS your BIOS will have to be new enough to support booting via USB.