In Windows Vista, when you restart a printer after you change its device configuration, the changes are not applied until the Print Spooler service restarts. For example, the changes are not applied until the computer restarts.

This problem occurs if the printer driver is based on Web Services on Devices (WSD). This problem occurs only if you make the changes while the printer is turned off.

You may be unable to use a scanner that uses a “Web Services for Devices” (WSD)-based scanner driver to transfer scanned data in Windows Vista. This problem may occur if the scanned data is very large. Examples of scanned data that may be very large are multipage file formats, such as XPS and PDF, and single-page formats, such as EEXIF and PNG.

This problem occurs even though you have installed the hotfix that is described in the following article number in the Microsoft Knowledge Base:

931674 You may be unable to use a WSD-based scanner driver to transfer scanned data in Windows Vista

You may be unable to use a scanner that uses a “Web Services for Devices” (WSD)-based scanner driver to transfer scanned data in Windows Vista. This problem may occur if the scanned data is very large. Examples of scanned data that may be very large are multipage file formats, such as XPS and PDF, and single-page formats, such as EEXIF and PNG.

When you try to print a Web page on a “Web Services for Devices (WSD)” printer in Windows Vista, the Web page may not be printed as expected. This problem may occur if the URL for the Web page contains certain special characters, such as an ampersand (&).

When you perform a scan by using a “Web Services for Devices” (WSD)-based scanner driver, you may receive an error message that resembles the following:

A problem prevented Windows from saving the settings that you last used to scan a document or picture (last used settings profile).

You cannot create a new scan profile. Also, when you change the current scan profile, the changes and the current scan profile are lost.