Getting some unwanted prompts in Audit mode

[Tripredacus]

I am trying to automate some of our application installs, but one script in particular is popping a confirmation prompt, and does not run automatically. This script is a batch file that installs OfficeReady from a network drive.

Is Vista prompting these boxes because I am trying to run a program located on a network share?

Note, this is Audit Pass, and the UAC is not enabled. The batch file (which initially has a prompt), also runs an EXE file and an MSP file (which it seems to know what to do with that by itself).

In XP (SP2 or SP3) I know I can turn off these prompts by modifying the registry for CheckEXESignature, RunInvalidSignature and LowRiskFileTypes. What is the Vista equivalent for this?