We have recently made big improvements to the infrastructure of JustDecompile auto-update.

Rather unfortunately, some of the changes we had to make are incompatible with the auto-update of your version of JustDecompile in case you are using 2015.3.928.0 or earlier. As a result you will not be able to use the auto-update feature.

To  update JustDecompile to the latest version, you need to manually download the installer and run it. Note that you don’t need to uninstall the old version you have. Once you manually install the latest version, there will be no issues with the auto-update and you should get notifications for new releases and updates as usual.

To make sure that you have the latest bit of JustDecompile and you have no problems with the upgrade in future, we strongly recommend that you download and install the tool now. Get it here.

Thank you very much for your understanding and cooperation.

The Telerik Team

Decompile with a Bang!
Find out what's new in the latest major Q3 2012 release of JustDecompile

I am trying to unlock a spreadsheet DLL that I locked up with LockXLSRuntime.dll.   For some reason this DLL will not decompile.  JustDecompile does not give any indication what is invalid about the DLL. The attached file is a .rar with the

Any help would be appreciated. 

Thank you.

Richard

Hi,

When I am decompiling my .NET Framework DLL using tool it for some method it generated below code and it gives error. 

Why it is providing d__12 ? and it gives error in many method which converted similar as below. 

            TicketeHttpClient.< GetPluginData > d__12 variable = null;
            AsyncTaskMethodBuilder<TPluginJson> asyncTaskMethodBuilder = AsyncTaskMethodBuilder<TPluginJson>.Create();
            asyncTaskMethodBuilder.Start < TicketeHttpClient.< GetPluginData > d__12 > (ref variable);
            return asyncTaskMethodBuilder.Task;

Please advice what went wrong in this case and how to resolve the problem.

I just downloaded the product, because i have an in house application with lost code.  I tried to drag-n-drop the EXE, MDB and even DLL's and they all say "is not currently supported".  I'm not sure what I am suppose to do to make this work.

Hi guys,

I'm interested in trying out this tool. At my work however, my dev environment does not have Internet connection and therefore I cannot install this tool. Is there anything I can do to try this tool out at work?

Thanks,
Bernado

Even though I use the product daily, I haven't seen updates for a few years. The JustDecompile Engine on GitHub was last touched in 2018. Has this product reached End of Life? Will it not be maintained anymore?

I downloaded the De4Dot project from GitHub and tried to build it Visual Studio 2017 but got many errors.  It looks like it is supposed to produce a Console APP  with a number of Class Libraries. I was wondering if there was a place to download the built De4Dot solution (EXE and DLLs)? Thanks.

Hi,

I lost the source code of an ASP.Net Core project due to a corrupted operating system and HP backup recovery falsely stating that it backs up content of the documents folder without mentioning that only certain file types are backed up. I used DotPeek to recover a lot of code but some classes could not be decompiled. Those same classes are also having problems with Just Decompile. Usually these classes use a lot of lambda expressions.

Here is an example of a customized Login model that returns an error saying "JustDecompile was unable to locate the assembly where attribute parameters types are defined. Generating parameters values is impossible." This error was proceeded by a prompt when decompiling that asked for the location of some assembly, but I hit skip and when opening the LoginModel I am no longer prompted to give the location. 

When I copy the output into Visual Studio 2019 I get a bunch of errors for things like base.get_HttpContext() or base.get_Url() which were not in the source code. DotPeek made the same mistake so I would have to go and manually change those to whatever method I was using to get the current HttpContext, Url, RouteData, etc.

Here is the output:

using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Identity.UI.Services;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.ModelBinding;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.CSharp.RuntimeBinder;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Diagnostics;
using System.Linq;
using System.Net.Http;
using System.Runtime.CompilerServices;
using System.Text.Encodings.Web;
using System.Threading.Tasks;

namespace PostAlmostAnything.Areas.Identity.Pages.Account
{
    [AllowAnonymous]
    public class LoginModel : PageModel
    {
        private readonly UserManager<IdentityUser> _userManager;

        private readonly SignInManager<IdentityUser> _signInManager;

        private readonly ILogger<LoginModel> _logger;

        private readonly IEmailSender _emailSender;

        private readonly IConfiguration configuration;

        private readonly IHttpClientFactory _httpClientFactory;

        [TempData]
        public string ErrorMessage
        {
            get;
            set;
        }

        public IList<AuthenticationScheme> ExternalLogins
        {
            get;
            set;
        }

        [BindProperty]
        public LoginModel.InputModel Input
        {
            get;
            set;
        }

        public string ReturnUrl
        {
            get;
            set;
        }

        public LoginModel(SignInManager<IdentityUser> signInManager, ILogger<LoginModel> logger, UserManager<IdentityUser> userManager, IEmailSender emailSender, IConfiguration configuration, IHttpClientFactory httpClientFactory)
        {
            this._userManager = userManager;
            this._signInManager = signInManager;
            this._emailSender = emailSender;
            this._logger = logger;
            this.configuration = configuration;
            this._httpClientFactory = httpClientFactory;
        }

        public async Task OnGetAsync(string returnUrl = null)
        {
            if (!string.IsNullOrEmpty(this.ErrorMessage))
            {
                base.get_ModelState().AddModelError(string.Empty, this.ErrorMessage);
            }
            string str = returnUrl;
            if (str == null)
            {
                str = base.get_Url().Content("~/");
            }
            returnUrl = str;
            await AuthenticationHttpContextExtensions.SignOutAsync(base.get_HttpContext(), IdentityConstants.ExternalScheme);
            IEnumerable<AuthenticationScheme> externalAuthenticationSchemesAsync = await this._signInManager.GetExternalAuthenticationSchemesAsync();
            this.ExternalLogins = Enumerable.ToList<AuthenticationScheme>(externalAuthenticationSchemesAsync);
            externalAuthenticationSchemesAsync = null;
            this.ReturnUrl = returnUrl;
        }

        public async Task<IActionResult> OnPostAsync(string returnUrl = null)
        {
            LoginModel.<OnPostAsync>d__25 variable = null;
            AsyncTaskMethodBuilder<IActionResult> asyncTaskMethodBuilder = AsyncTaskMethodBuilder<IActionResult>.Create();
            asyncTaskMethodBuilder.Start<LoginModel.<OnPostAsync>d__25>(ref variable);
            return asyncTaskMethodBuilder.get_Task();
        }

        public async Task<IActionResult> OnPostSendVerificationEmailAsync()
        {
            IActionResult actionResult;
            if (base.get_ModelState().get_IsValid())
            {
                IdentityUser identityUser = await this._userManager.FindByNameAsync(this.Input.UserName);
                IdentityUser identityUser1 = identityUser;
                identityUser = null;
                if (identityUser1 == null)
                {
                    base.get_ModelState().AddModelError(string.Empty, "Verification email sent. Please check your email.");
                }
                string userIdAsync = await this._userManager.GetUserIdAsync(identityUser1);
                string str = userIdAsync;
                userIdAsync = null;
                string emailAsync = await this._userManager.GetEmailAsync(identityUser1);
                string str1 = emailAsync;
                emailAsync = null;
                string str2 = await this._userManager.GenerateEmailConfirmationTokenAsync(identityUser1);
                string str3 = str2;
                str2 = null;
                string str4 = UrlHelperExtensions.Page(base.get_Url(), "/Account/ConfirmEmail", null, new { userId = str, code = str3 }, base.get_Request().get_Scheme());
                await this._emailSender.SendEmailAsync(str1, "Confirm your email", string.Concat("Please confirm your account by <a href='", HtmlEncoder.get_Default().Encode(str4), "'>clicking here</a>."));
                base.get_ModelState().AddModelError(string.Empty, "Verification email sent. Please check your email.");
                actionResult = this.Page();
            }
            else
            {
                actionResult = this.Page();
            }
            return actionResult;
        }

        public class InputModel
        {
            [DataType(,)]    // JustDecompile was unable to locate the assembly where attribute parameters types are defined. Generating parameters values is impossible.
            [Required]
            public string Password
            {
                get;
                set;
            }

            [Display(Name="Remember me?")]
            public bool RememberMe
            {
                get;
                set;
            }

            [Display(Name="Login Name")]
            [Required]
            public string UserName
            {
                get;
                set;
            }

            public InputModel()
            {
            }
        }
    }
}