TestExecute Exit Code on Vista

I have a TestComplete project that I run on three operating systems: Vista-64, XP-64, and XP-32.

In the test logs, everything is fine--there are no errors or warnings reported.  When I use Hudson to

launch TestExecute, it works fine on the XP systems, but not on the Vista system.  On Vista, there is

always an exit code of -1, even when the TestComplete logs say that everything is fine--no

errors and no warnings. 

I have narrowed the problem down to using script extensions.  If I run a simple script such as

the following, the exit code is zero.

function Main ()

{

  Log.Message ('hello world');

}

However, if I make a script extension that contains only Log.Message and call it instead, then

I get an exit code of -1 on Vista while it works fine on XP.  What &$*%^@ Vista setting do I

have to change to get this exit code working properly?  Or, should I simply wrap the TestExecute

call in a .bat file?

Regards,

G