Node.js Requires Chilkat v11.7.0+

Remove the Authenticode Signature from an MSI, PowerShell, or VBScript File

See more Code Signing Examples

Demonstrates how to remove the Authenticode signature from a Windows Installer package (.msi), a PowerShell file (.ps1, .psm1, .psd1), or a VBScript file (.vbs). Removing the signature from these file types requires Chilkat v11.7.0 or later. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    //  This example requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    //  Starting in Chilkat v11.7.0, RemoveSignature can remove the Authenticode signature from
    //    - Windows Installer packages (.msi)
    //    - PowerShell scripts, modules, and data files (.ps1, .psm1, .psd1)
    //    - VBScript files (.vbs)
    //  in addition to EXE and DLL files.

    //  This example removes the signature from a signed PowerShell script.
    //  To remove the signature from an .msi or a .vbs, pass the path of that file instead.
    var path = "C:/someDir/Deploy.ps1";

    var codeSign = new chilkat.CodeSign();

    //  The file is modified in place.  Keep a copy if the signed file is still needed.
    //  
    //  For a PowerShell or VBScript file, the signature comment block is removed from the end of the file.
    //  For an MSI, the digital signature stream and the extended signature stream (MsiDigitalSignatureEx)
    //  are removed from the package.
    success = codeSign.RemoveSignature(path);
    if (success == false) {
        console.log(codeSign.LastErrorText);
        return;
    }

    console.log("The signature was removed.");

    //  The file is now unsigned, so VerifySignature returns false.
    var sigInfo = new chilkat.JsonObject();
    var valid = codeSign.VerifySignature(path,sigInfo);
    console.log("has a valid signature: " + valid);

}

chilkatExample();