Policy prevents you from connecting to print queue

[blin]

the following error message is received when you try to install a
shared printer on Vista SP1 clients using the printer share name:

"A policy is in effect on your computer which prevents you from connecting
to this print queue. Please contact your system administrator."

If I have misunderstood your concern, feel free to let me know.

Based on my research, the problem can be caused by Point and Print
Restrictions policy setting.

If you use the Point and Print functionality to connect to a shared
printer, the print driver for that shared printer is automatically
downloaded to your workstation.

If you try to connect to a shared printer that is running on a computer
that this policy setting does not permit you to access, Windows tries to
find and install the appropriate driver and the Driver.cab file on your
local computer. If Windows cannot find a suitable driver, you receive the
following error message, which indicates that a policy setting is
preventing this action:

A policy is in effect on your computer which prevents you from connecting
to this print queue. Please contact your system administrator.

For more information, please refer to the following KB article:

Description of the Point and Print Restrictions policy setting in Windows
Server 2003 and Windows XP
http://support.microsoft.com/kb/319939

For your XP SP2 clients, they can find and install the compatible driver
from the local computer. However, Vista clients may not contain the Vista
compatible printer drivers. I suggest you download the latest Vista
compatible printer driver from the manufacturer and follow the steps below
to install it on Vista clients:

1. Click Start and click Printers.
2. Right click the blank area and select Run as administrator->Server
Properties.
3. Switch to Drivers tab and click Add.
4. Click Next, select x86 and click Next.
5. Click Have Disk, click Browse, locate the .inf file to install the
driver.

Then, restart the Vista clients to check the result.