| Problem | Likely solution | |---------|------------------| | "Another version is already installed" | Uninstall the existing Crruntime via , then reinstall. | | "This MSI requires Cinema 4D R13 or later" | The runtime expects a parent installation. Install Cinema 4D first, or use the REINSTALL=ALL parameter: msiexec /i "Crruntime 64bit -13-0-15.msi" REINSTALL=ALL REINSTALLMODE=vomus | | "Error 1722: There is a problem with this Windows Installer package" | Run sfc /scannow in an admin command prompt to check system files, then try again. | | "The file is not a valid MSI" | The download is corrupt. Re-download from an official source. |

The "-13-0-15" in the filename refers to the version number of the software, with "13" representing the major version, "0" representing the minor version, and "15" representing the patch version. The ".msi" extension indicates that it is a Windows Installer package file.