In plugin, I do the following command either from a shell or batch:

si about

I get the following error:

si: Attempt to launch MKS Integrity Client Timed out. To solve this please try the following:

• Verify that the user you are logged in as has read and write permissions to the Integrity Client install directory.
• Make sure the Integrity Client install directory is the very first entry in the path.

I am not using the Local System Account. This was changed to the user account used to log on to MKS Integrity.
This was verified by checking the Jenkins Service from services.msc.

I also went to my Integrity Client install directory.
I can read and write here.

I also added the Integrity Client install directory to my PATH environment variable.