如何从Inno Setup脚本调用.NET DLL？

[Code]
#include "dotnet.iss"

[Code]
function InitializeSetup(): Boolean;
begin
  Result := DotNetCheck();
  if not Result then
    MsgBox('This setup requires the .NET Framework 4.5 or higher to be installed.', mbInformation, MB_OK);
end;

function DotNetCheck(): Boolean;
var
  ErrorCode: Integer;
begin
  Result := IsDotNetInstalled('4.5', ErrorCode);
  if not Result then
    Result := IsDotNetInstalled('4.0', ErrorCode);
end;

function IsDotNetInstalled(version: String; var ErrorCode: Integer): Boolean;
var
  key: String;
begin
  key := 'SOFTWARE\Microsoft\NET Framework Setup\NDP\' + version;
  Result := RegKeyExists(HKLM, key);
  if not Result then
    Result := RegKeyExists(HKLM, key + '_WOW6432Node');
  if not Result then
    ErrorCode := 16389;
end;

[Code]
procedure CallDotNetMethod();
var
  dotNetAssembly: Variant;
  dotNetClass: Variant;
begin
  dotNetAssembly := CreateOleObject('YourAssemblyName');
  dotNetClass := dotNetAssembly.CreateObject('YourClassName');
  dotNetClass.YourMethodName();
end;