I have read over the document but I am not sure if I am doing everything correctly.
I first copied all 3 files to the ldlogon folder on the server. (files copied "ProduKey.exe", "Ldscnhlp.ini", and "MSProducts.exe")
Second, made a copy of the following file as a backup purpose ("NTstacfg.in#")
Third, opened file on second step. Added following lines "FILE05=ProduKey.exe, ProduKey.exe COPYALWAYS" under "Begin of Data collection forms component"
I don't think I am following step number 5 under Extending Inventory with Unmodeled Data.
Thanks for your help.