Computer That Once Had Prassi CD Right Plus! v.1.5 Installed Hangs at Shutdown and Does Not Turn Off (285537)

SYMPTOMS

When you try to shut down a computer that has been upgraded to Windows 2000 Professional from an operating system that once had Prassi CD Right Plus! version 1.5 installed, the computer may stop (hang) at a solid-color screen, and it does not turn off. You must turn it off manually by pressing the power button. There is no screen stating that it is now safe to turn off the computer.

CAUSE

This behavior can occur because the Ptaspi.sys driver file that is installed with Prassi CD Right Plus! version 1.5 remains active after the program is removed, and it is not compatible with the power management in Windows 2000.

RESOLUTION

To resolve this behavior, make sure that the Prassi CD Right PLUS! version 1.5 has in fact been removed, and then manually rename the driver Ptaspi.sys to Ptaspi.old. The Ptaspi.sys file is located in the Winnt\System32\Drivers folder.

MORE INFORMATION

For more information and for updates of Prassi CD Right Plus!, visit the following Web site:

http://www.prassi.com/support_cdright.htm

The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

For information about how to contact Prassi Software, click the appropriate article number in the following list to view the article in the Microsoft Knowledge Base:

65416 Hardware and Software Third-Party Vendor Contact List, A-K

60781 Hardware and Software Third-Party Vendor Contact List, L-P

60782 Hardware and Software Third-Party Vendor Contact List, Q-Z