Code to detect if NLB is enabled on NIC?

I wasnt sure where else to ask this.

I have a list of 2003/2008/2008R2 servers that I was able to get and find that the 'Network Load Balancing' service was installed on the NIC(s).  What I am trying to do is find out if that little checkbox next to the service is checked or not.  I know this may not be the exact correct way to do it, but I just need to find out if its enabled.

I use Powershell and C# .NET as my main development tools, but I know there may be some situations where vbscript would be needed.

Please help before I have to visit all these servers individually.

Thanks,

EFD