CorelDraw 12 is not compatible with Windows 7, you can visit http://www.corel.com/servlet/Satellite/ ... 4516325170
, to know which version of the Corel Software is compatible with Windows 7.
There is a workaround for you to make old program works on Windows 7, however I cannot assure if this will work for you, you can use the Windows 7 Program Compatibility and the Windows XP Mode with Virtual PC, which are both from Microsoft.
You can follow the steps for Windows 7 Program Compatibility from this link: http://windows.microsoft.com/en-US/wind ... of-Windows
You can download and install the Windows XP Mode with Virtual PC from this link: http://www.microsoft.com/windows/virtua ... nload.aspx
I would recommend that you try the latest version of CorelDraw which is CorelDraw X6 which is full compatible with Windows 7. You can download the trial at http://pnoy.me/coreltrials