What does DIAdem do to keep track of multiple versions of itself?

[DecaGregg]

I am using an automation reference to open up DIAdem. I have 8.1 and 9.0 installed. If I run DIAdem 8.1 and close it, then the reference gives me 8.1. If then I run DIAdem 9.0, the reference gives me 9.0. So the computer must be keeping track of the program that was run most recently. How does it do this?

[ryank]

It uses a registry key to save the current version

Regards,
Ryan K.

[DecaGregg]

I don't think it uses a registry key. LabVIEW does, but there is nothing I can see in DIAdem where this happens. Which key/value is it kept under?

[ryank]

I don't have two versions on this computer so I can't play with it to find the exact key, it's probably going to be under HKEY_CLASSES_ROOT\TypeLib\ somewhere, but it'll be under the Class ID rather than the name.

Regards,
Ryan K.