Which settings and procedures are to be observed with regard to InstallShield when installing STEP 7?
Check DCOM settings and reset to default settings Like many other current applications the Setup of STEP 7 uses the new Windows Installer technology (also known as Microsoft Installer or MSI). The Windows Installer uses the DCOM technology (Distributed Component Object Model) and requires specific DCOM security settings. The default settings meet these minimum requirements. If, for example for security reasons, the DCOM settings are restrictive, it might happen that the installation procedure aborts with one of the following error messages: • “InstallShield: 1601: internal error in Windows installer”. • “1607: “Cannot install InstallShield Scripting Runtime”. Open the “DCOM Configuration” dialog in Windows by selecting “Start > Run…” and then entering “dcomcnfg”. The MSI Setup doesn’t work if the default properties have been set as follows: • Default Authentication Level: None • Default Impersonation Level: Anonymous In this case reset the default settings as shown in Fig. 01. Fig.
