Probably yes. If it doesn’t, that’s even more dangerous (zero-day malware).
Store both the XML and the original cdaczip in a secure, version-controlled repository. ism 62 software licences from cdaczip upd
Before any UPD, always export current licences: Probably yes
Below is an informative article covering the software, the licensing context, and the risks associated with unofficial updates. Probably yes. If it doesn’t
ISM62Validator.exe /check="package.cdaczip" /verbose