We have used PDFCreator in the past with no problem but on Windows7 64-bit we are having problems with the temp directory.
It sets the temp directory to:
C:\\Users\\InstallUser\\AppData\\\\Temp\\Pdfcreator
When another user logs on it tries to use this directory and that user cannot access it.
The latest version has removed the temp directory setting from the interface.
We have to go into the registry on the newest version and change it to
C:\\Users\\Username\\AppData\\Local\\Temp
This needs fixed in the software install.