Code Access Security in .NET 4.0 when creating installer in Inno Setup

When I created installer with .NET2.0 application I always add that line:

Filename: {win}\Micr开发者_StackOverflow中文版osoft.NET\Framework\v2.0.50727\CasPol.exe; Parameters: "-q -machine -addgroup 1.2 -url ""file://{app}/*"" FullTrust -name ""MyApp"""; WorkingDir: {tmp}; Flags: skipifdoesntexist runhidden; StatusMsg: "Setting Program Access Permissions..."

Now, I want to create installer with .NET4.0 and I'm confused a little bit.

I don't know whether that is very important, but how can I replace it? So that it will work with .NET4.0?

Maybe I don't have to do anything in Inno setup script, and only in my app.config this?:

<configuration>
   <runtime>
      <NetFx40_LegacySecurityPolicy enabled="true"/>
   </runtime>
</configuration>

I don't know if that is important, but my app (windows service) will host WCF functions.