Help with Chilkat and POST and xml

Hello! I am looking for somebody who has experience with this and who can quickly tell me how to go on. If somebody know what he's doing, it might be a 10 minute job. I am using Chilkat with .Net. I have a document which says: Data exchange Communication via the interfaces takes place as a POST request using the HTTP protocol (RFC 2616). The data transfer is encrypted via an SSL certificate. The industry software triggers a process triggers a process by a request on the interface server. However, this does not establish an active connection to the inquiring industry software, but only delivers the corresponding result or processes the data received from the previous request. The interface server thus acts passive communication partner and represents a data supplier or a data receiver. data receiver. Depending on the data exchange, the required values and also the structure of the XML package are differ. The XML data frames are listed and illustrated in the individual chapters for the different request types are listed and illustrated in the individual chapters. For each request there is always an authentication of the communicating user takes place. If this is successful, then it comes to the corresponding data exchange takes place. The interface functions can be found at the URL https://(....)[login to view URL] accessible. The call of the individual functions is in the appropriate sections of the interface descriptions (chapter 2.3 Interface functions and data set structures). The XML structures defined for the individual functions must be specified with the name xmlPackage as POST parameter. (The transmission of the XML in the body via HTTP_RAW_POST_DATA is no longer supported). The Content-Type should be set to multipart/form-data. UTF-8 is to be used as encoding. I am looking for somebody who has done this with chilkat already and can quickly show me to do something like that. What I have so far is: Dim xml As New [login to view URL] [login to view URL] = "xmlinterface" [login to view URL]("authentifikation|md5key", MD5_TWS) [login to view URL]("authentifikation|softwareID", ID_TWS) [login to view URL]("anfragedaten|kostentraegerID", "103411401") [login to view URL]("synchronisation|syncart", "3") [login to view URL]("synchronisation|syncdatum", "2020-09-16 11:27:00") [login to view URL]("synchronisation|synctyp", "1") Dim req As New [login to view URL] [login to view URL] = "POST" [login to view URL] = "multipart/form-data" [login to view URL] = False And now I am lost.