If you get exception - something gone wrong - post your sample project here or send to mail@lmdteam.com. Normally is enough to place LMDSysSystemInfo on Form and set LMDSysSystemInfo.AutoRetrieve property to true or call LMDSysSystemInfo.Refresh inside your code directly.
This is what I have done. LMDSysSystemInfo in a fresh VCL project. AutRetrieve = true and also Method Refresh used. There is nothing inside the component. I have installed and compiled source code version under Delphi XE.
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In my case, I simply get nothing (except an exception).
LMDSysSystemInfo.AutoRetrieve property to true or call
LMDSysSystemInfo.Refresh inside your code directly.