You need to connect the printer with an extra cable which can join it through its 25 pin parallel cable. That cable then with USB end connect with the Laptop. and its drivers can be automatically detect by your Vista system.
For Vista 64-bit, the driver for printer and cable should be digitally signed.
Otherwise you need this method for Driver Installation in Windows Vista 64-bit:
The 64-bit version of Windows Vista is the first version of Windows that will only allow signed drivers and this restriction is built-in. For most cable drivers are unsigned and we request you to follow some prerequisites before installing the driver.
Preparing Vista 64-bit for Driver installation:
- Using the F8 option: Press F8 key on your keyboard while booting your PC. You will get into “Advanced Boot Options”. Select “Disable Driver Signature Enforcement”
- An F8 Advanced Boot Option introduced with Windows Vista—“Disable Driver Signature Enforcement”—is available to disable the kernel-signing enforcement only for the current boot session. This setting does not persist across boot sessions.
- Note: Make sure to use F8 option every time you boot/reboot your PC before start working with MCS77XX.
- Make sure that the User installing the driver must be a member of the Administrator group on the system.
And for printer driver if you dont have CD then go through this link and follow the steps:
Let me know if you need furhter assistance, I will help you to run your Printer with Laptop.