Vista - Installing a Network Printer with PrintUI.dll

Hi,

I'm currently playing around with printer connections in Vista Ultimate RC2.
I'd like to use the rundll32 printui.dll,PrintUIEntry /ga /q
/n\\PrintServer\PrintShare command to install a network printer for all users
on the Workstation. This works beautifully in Windows XP :-)

When I type rundll32 printui.dll,PrintUIEntry /? in Vista all the options I
use have the same documentation as they do in XP so I expected the command to
work the same. I've got it to add the printer and it displays for a fraction
of a second before the Spooler service crashes with this error:

Problem signature:

Problem Event Name: APPCRASH
Application Name: spoolsv.exe
Application Version: 6.0.5744.16384
Application Timestamp: 4523520b
Fault Module Name: StackHash_8284
Fault Module Version: 6.0.5744.16384
Fault Module Timestamp: 452358e5
Exception Code: c0000374
Exception Offset: 000ad93b
OS Version: 6.0.5744.2.0.0.256.1
Locale ID: 1033
Additional Information 1: 8284
Additional Information 2: e9791f34abac62f66d5f130451919259
Additional Information 3: 6df8
Additional Information 4: f3150e0d4ec0ff6398c08e4d8b66bca8

I can install the network printer for a user and print to it without a
problem so I don't think it's the Driver that's the problem(??).

Have changes been made to printui.dll in Vista, or is there something else
going on here???

I've seen other posts around with people having trouble with the spooler
service with network printers, has anyone found a better resolution than
rebuilding the user's profile??