Dear Graeme,
In the 2 years that Measurement Studio 6.0 has been in the market, we have not encountered this particular issue you experienced. But if we had, we would have certainly documented it and provided workarounds for our customers.
It is hard to determine whether Measurement Studio did in fact cause the corruption of the dll registry based on the information you gave us. It is entirely possible that your VB installation was already corrupted but unnoticeably so.
If you would like us to further investigate this issue, please contact support@ni.com with a link to this thread and any other relevant information that would allow us to reproduce this problem.
Best Regards,
Azucena
Measurement Studio