Hi, we’ve tried yesterday to install client and server for 3.70 Attain, as we got this error message: “1: The InstallScript engine is missing from this machine. If available, please run ISScript.msi, or contact your support personnel for further assistance” For sure we tried to install the file “ISScript8.msi” but also after this installation we are not able to install Navision 3.70. I know that i just can copy the files on harddisk and it works, but i want to install it normally!