Ian,
One way to ensure that the lvanlys.dll is included in the the cabinet file is to include the DLL manually.
This can be accomplished through the following steps:
1. With application builder open, select the Installer Settings tab.
2. Click the Files... button to bring up the Installation Destination Settings windows.
3. Click Add File.. and select the lvanyls.dll located in the .\labview 6.1\resource directory.
You should not receive these error messages after building the installer with these files included.
Regards,
Matt Friedman
Applications Engineer
National Instruments