The ZIP file ecma285source_files.zip contains the following files: - folder asn1-source – contains the ASN.1 source files derived from ECMA-285, 4th edition, that can be used with many industry compilers. - acse_user_info_csta.asn1 – This file specifies the "CSTAFunctionality" parameter type that is defined in ECMA-218 (CSTA Phase II Protocol). The file needs to be compiled with the above ECMA-285 source file (See clause 8.2.2 in ECMA-285). - rose94.asn1 – This file specifies the Remote Operations ASN.1 definitions. It may be required by some compilers that do not provide the Remote Operations definitions automatically. - readme.txt – This file contains a short explanation of the ZIP file contents. amendments: ----------- 1. used old acse_user_info_csta.asn1 module instead of new application-context modules that threw warnings due to multiple pdu tags 2. the definition for ACSEUserInformationForCSTA inside acse_user_info_csta.asn1 may generate a ASN.1 compiler warning, to achieve backward compatibility this warning stays unresolved 3. tabsize = 8 ECMA-285 4th edition is not involved in these changes.