During Setup, the error 1155 occurs, "1155: File ...\Appeon\appeon5.0 not found".
Cause: This error occurs because PowerServer Setup failed to detect the ISScript8.msi file that is used to install the InstallScript engine.
Solution: Find the ISScript8.msi file in the directory \Install\AppeonComponent\ (for example, \Install\ADT\) and double-click it to run the InstallScript engine installer.