InstallShield DLL Function call failed: Isrt._dotnetcocreateobject

Problem Description: you need to enter a string of characters at the time of installation to call C # encapsulated DLL for processing. Calling the DLL method with InstallScript has failed, prompting an error such as.

Tools: InstallShield 2015

Visual Studio 2017

Solution:

C # code section

TestClass.cs, define three methods. The namespace is libtest and the class name is TestClass.

AssemblyInfo.cs, set ComVisible to true;

Put the generated LibTest.dll into the Supportdir.

Installsctript Script

InstallShield DLL Function call failed: Isrt._dotnetcocreateobject