thanks, this will help improve the app. with this error, the common dialog controls are probably missing in the system. it is possible that installing the package from here will improve the operation: https://support.microsoft.com/en-us/topic/description-of-the-cumulative-update-rollup-for-the-visual-basic-6-0-service-pack-6-runtime-extended-files-e02acc79-217b-fc0a-6edc-540403af2081 although this component itself is not crucial and I will try to prepare a version where it will not be necessary, replacing it with something else. because this component is only responsible for opening a window asking for a file or folder selection