I think you need the QFE hotfix for this.
"You experience problems when you try to print a document in a 32-bit
program on a computer that is running a 64-bit version of Windows Vista"
http://support.microsoft.com/kb/941962/en-us
--
Alan Morris
Windows Printing Team
Search the Microsoft Knowledge Base here:
http://support.microsoft.com/default.aspx?scid=fh;[ln];kbhowto
This posting is provided "AS IS" with no warranties, and confers no rights.
"Phil" <keswick222@yahoo.com> wrote in message
news:Xns99D5CBE1AC23Ekeswick222yahoocom@66.250.146 .128...
>I may have posted this message to the wrong group earlier, so I am
> reposting it here:
>
> I have recently purchased a Windows Vista Ultimate 64 bit notebook. One
> of
> my apps seems to have difficulty printing. The app works fine, except for
> printing. I get a print dialog box, but nothing happens. This takes
> place
> about half of the time. On several occasions I have gotten an error
> message saying: "Thunking Spooler APIS from 32 to 64 Process has stopped
> working"
>
> Any ideas for resolving this? Phil