I am trying to find the software for my a40? and i lost my cd from the purchase

You can download Canon software from
http://www.usa.canon.com/cusa/support/consumer/digital_cameras/powershot_a_series/powershot_a40#DriversAndSoftware

You might want to consider NOT connecting your camera to your computer. The best way to download pictures from your camera to your computer involves removing the memory card from the camera and plugging it into a card reader (either built-in to the computer or connected via USB or FireWire). This is likely to be faster than connecting the camera to the computer, and won't run down your camera's batteries.

Once the card is plugged in, it will appear to your computer as a removable drive. You can use the operating system's drag&drop facility to copy pictures from the card to the computer's hard drive, the same way you copy any other files. Or you can use Canon ZoomBrowser or any other photo cataloging program.

Hi! Please visit www.canon.com, they have lists of downloadable programs that you can use for your webcam. Hope this helps and have a good one!

You can download if from the below link:
http://software.canon-europe.com/products/0000573.asp
I hope this information allows you to resolve this issue.

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Regards Anand

The only legitimate way to get a new CD key is to contact Roxio directly.

The instructions for doing so can me located here: http://www.roxio.com/enu/support/service/cs_findcdkey.html

They will help you if you purchased the software directly from them or if you registered it after purchase. Replacement of a lost CD-key on software purchased from a brink and mortar venue, like Staples for instance, that wasn't registered is totally at Roxio's discretion. They specifically state they are not liable for lost keys under such circumstances.

Good luck.

log onto Canon usa 's web site and pop in your camera name in the pull down menus..
then you can download manuals, software free!!

Click HERE

probably the optical lense of u'r cd rom drive needs to be cleaned try cleaning it by aquiring/buying a cd/dvd rom drive cleaning kit from a local computer store. hope this help ;-)

This from Dell support should help.
Dell support

this site will help you

http://www.nodevice.com/driver/PowerShot_A40/get37017.html

i have purchased replacement software from Ebay & you can download some from the Canon web site , i have trhe exact same camera Power Shot A40

www.toshiba.com is a good place to start..

enter model number and operating system.

check your warranty here for FREE