How navigate in chilkat.CkAsn().
the get_NumSubItems attribute does not appear to work and after how retrieve the data based on the Tag ?
There are two possible ways to proceed.
1) Convert the ASN.1 to XML by calling AsnToXml. The go to https://tools.chilkat.io/, in the "XML" dropdown, select "Generate Code to Parse XML". Copy-and-paste the XML and then generate the parsing code in your selected programming language.
2) Send the binary ASN.1 file (in a zipped attachment) to firstname.lastname@example.org, and I'll have a look. If possible, let me know if I can publish the information contained in the ASN.1 as an example on example-code.com.