When you try to install a shared printer when you have User Account Control (UAC) turned off in Windows Vista, you may receive an error message that resembles the following:

Connect to a Printer

Windows cannot connect to the printer.
The specified Print Monitor is unknown

This problem occurs after you click Install driver in the Printers dialog box. This problem may occur if the printer driver has a language monitor as part of the driver package.

You perform one of the following operations on a Windows Vista-based computer:

• Connect to a shared printer on the network, and then run the “Common Scenario Stress with IO” test in Driver Test Manager (DTM).
• Print to a shared printer on the network.
• Perform a power management operation. For example, you put the computer to sleep or into hibernation. Or, you wake the computer from sleep or from hibernation.

In this scenario, you receive a Stop error message that resembles the following:

*** STOP: 0×0000009F (parameter1, parameter2, parameter3, parameter4)
DRIVER_POWER_STATE_FAILURE

Consider the following scenario:

• You try to add a shared printer to a Windows Vista-based computer.
• The Windows Vista-based computer is connected to a peer-to-peer network.
• The shared printer was configured on a Microsoft Windows XP Service Pack 2 (SP2)-based computer.

In this scenario, you may receive the following error message:

Windows cannot connect to the printer. Access is denied.

You try to open a 2007 Microsoft Office document that is on a shared folder, or you try to save a 2007 Office document to a shared folder. When you do this, you are prompted two times to type your username and your password to access the shared folder.

When you try to route incoming faxes to a shared printer in Windows Vista, the print job fails.

When you try to connect to a shared printer in Windows Vista, you receive the following error message:

Windows cannot connect to the printer. The printer driver is not compatible with a policy enabled on your computer that blocks NT 4.0 drivers.

You experience this behavior if the following conditions are true:

• You use the Windows Point and Print feature to connect to the shared printer.

  Note: The Point and Print feature lets you print to a shared printer without manually installing a new driver. For more information about this feature, see the “More Information” section.

• The shared printer uses a kernel mode printer driver.