On that disc you'll find ActiveSync which you can download for free from Microsoft's web site. There's also a PDF manual which you should be able to download from HP's web site. The last big piece of software is MS Outlook 2002. Hopefully you already have a copy of Outlook running on your PC since you can't download Outlook for free, it's a pay-for item. Alternatively you could call HP tech suppport and tell them you lost your CD and want to know if they'll sell you a new one.