# FAQ ### How is this add-in written? The code is written entirely in Java to run on all platforms and processor architecture supported by HCL Domino. Once loaded, the add-in stays in the background waiting for server console commands. The open source [JAddin Framework](https://jaddin.abdata.ch) is used to interface between the HCL Domino Server and the DSAK Java class. ### Error "RunJava: Can't find class ..." or "JAddin: Unable to load Java class ..." Make sure you have typed the *Load RunJava JAddin DSAK* command with correct upper-/lowercase characters. All Java class names are case-sensitive (see [Installation and Usage)](/quick-start/installation-and-usage.md). ### How do I get informed about new versions? DSAK checks the availability of a newer version during startup and writes a message to the server console if a new version is ready to download. This check is done with a standard HTTPS request to (port 443). --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://dsak.k43.ch/quick-start/faq.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.