topic access to Windows Registry keys in PowerShape and PowerMill API Forum

access to Windows Registry keys

l.ponsaerts — Sun, 16 Oct 2022 01:28:03 GMT

Hi all,

I am in the midst of refactoring an old vb6 app to VB.net in VS2022. (Win11)

With VB6 and PM2012 I had access to all registry keys under /localmachine/Delcam/, and also to /localmachine/Delcam/Powermill

using :

Dim PowerMILL As RegistryKey = Registry.LocalMachine.OpenSubKey("SOFTWARE\Autodesk")
Dim List_PM As String() = PowerMILL.GetSubKeyNames

Now, with vb.net most of the keys are invisible to PowerMILL As RegistryKey and

Dim PowerMILL As RegistryKey = Registry.LocalMachine.OpenSubKey("SOFTWARE\Autodesk\Powermill")
Dim List_PM As String() = PowerMILL.GetSubKeyNames

creates an exception at the second line because SOFTWARE\Autodesk\Powermill is not accessible.

What do I do wrong here ?

Re: access to Windows Registry keys

l.ponsaerts — Mon, 17 Oct 2022 23:58:19 GMT

herby the test code

Re: access to Windows Registry keys

l.ponsaerts — Tue, 18 Oct 2022 07:33:06 GMT

found a solution. The openkey(path) only shows 32 bit software keys.

In order to get to the 64 bit ones :

PowerMILL = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry64).OpenSubKey("SOFTWARE\Autodesk\Powermill")

List_PM = PowerMILL.GetSubKeyNames

Re: access to Windows Registry keys

luke.edwards.autodesk — Tue, 18 Oct 2022 08:33:10 GMT

The alternative is to target your solution to x64. I would suggest you want to do this as standard these days anyway, especially if you want to interact with the products.

Re: access to Windows Registry keys

l.ponsaerts — Tue, 18 Oct 2022 15:08:47 GMT

Luke, didn't know that. Thanks.