Important Notes on Parameters

Global parameters defined in optional required products are added to the common set of parameters only if the optional required product has been selected.
For global parameters set through the environment, the following applies:
The Installer performs a check whether a global parameter previously unknown to the Installer is already defined in the environment. If this is the case, the Installer takes that value as a set value for the parameter, which automatically disables dialogs changing the value of this parameter.
Parameter values that consist of other parameters or combination of parameters and absolute values are automatically evaluated when the user navigates between dialogs.
The following characters are not allowed within parameter names:
```
.  ;  :  \t  \n  \\  \"  /  ,  $  (  )  -  {  }  white space
```