ToyBase 6 was distributed on CD because it installed a program called the Borland Database Engine (BDE) onto your PC. You cannot run ToyBase by copying the program files onto another PC without also installing the BDE. If you have lost your CD and want to make another, send me an email and I will send you the link so you can download a copy of the CD over the Internet. If you are using Windows XP, Vista or 7 then I suggest you upgrade to ToyBase 7. You will download a file called toybase6408.exe.  This is a ZIP file containing the contents of the ToyBase 6.4.8 CD. You don't need WinZip installed - just run the program and it will create a folder called c:\toybase6408 on your PC. Inside this folder you will find a program called welcome.exe : Run the welcome program to install the software on your PC. NB ToyBase 7 is much smaller and no CD is required.  The software is downloaded over the internet and the program can be copied easily between computers as it is self-contained.