!!! Overview
[{$pagename}] (SPC_COMMERCIAL_SP_KEY_PURPOSE_OBJID) is a [ExtendedKeyUsage] for [Certificate Extensions] which indicates [Microsoft] Commercial Code Signing ([authenticode]) and uses the [OID] [1.3.6.1.4.1.311.2.1.22]

!! More Information
There might be more information for this subject on one of the following:
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