Visual Studio C# - update the source code

My small Visual Studio C# project needs updating.

These are the requirements:

The source code is a few days behind the exe that was built. I have recovered the source code from the exe using dnSpy. I will supply the original source code and the recovered source code. We need the original source code to be updated with the changes in the recovered code.

The project uses an API from Xero dated in 2014. We need the code in the project to be updated to use the latest Xero API. We will tell you where to get this from.

Change project to use Net 4.5 instead of Net 4.0.

FYI The purpose of the program is to extract data into CSV files from the Xero accounting package. It has been working perfectly for several years. But now Xero require the use of TLS 1.2. Hence we must update the program.

Note: You do not need to program new functionality, as the program does exactly what is needed. This job it to get it working with a new API.

Skills: .NET, API, C# Programming

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About the Employer:
( 2 reviews ) Dee Why, Australia

Project ID: #17362567

Awarded to:


Hi please send me the original and the recovered source code and le me know from where I can Xero API credentials. I can do this with latest version of .net I have visual studio 2017. Relevant Skills and Experience C# More

$111 USD in 3 days
(6 Reviews)

44 freelancers are bidding on average $183 for this job

$160 USD in 3 days
(191 Reviews)

Is the project written in C# Window Forms or C# Web Forms? Relevant Skills and Experience I am expert in ASP.NET and C# Proposed Milestones $277 USD - Project Milestone

$277 USD in 3 days
(94 Reviews)

Hello, I'm Abu Gosia. I'm interesting your project very well I m quite well experienced in these jobs. Let's go ahead with me I want to service for you continously. Thanks Relevant Skills and Experience I'm good in More

$277 USD in 10 days
(95 Reviews)

From what you said, this should not be a problem to upgrade your original source code. But testing the Xero API update might be troublesome. I will need your help for this ;) Relevant Skills and Experience c# programm More

$100 USD in 3 days
(44 Reviews)
$150 USD in 3 days
(39 Reviews)
$222 USD in 3 days
(48 Reviews)

I've really rich experience for your project, so your project is very interesting to me. If you give me a chance, I'll do my best to provide wonderful result. Relevant Skills and Experience -Professional C# decompile, More

$100 USD in 3 days
(13 Reviews)

Hi there - My name is Ase N from Russia. I’ve read your brief and can see that you’d like to build a visual c# app. Relevant Skills and Experience I am highly qualified for this project and would love to speak with yo More

$30 USD in 3 days
(23 Reviews)

Hello, I have been 10 years of experience in .NET. Im already ver good experience in connecting apis. please share the source code and will have a look and will discuss more details of the project. Relevant Skills an More

$150 USD in 3 days
(63 Reviews)
$155 USD in 1 day
(15 Reviews)

Hello, i worked with Xero API in a recent project, and I can take a look at your project to see if I can update it to user the latest API. Relevant Skills and Experience More than 19 years experience developing Window More

$500 USD in 5 days
(7 Reviews)

Upgrade to .Net 4.5 required at least Visual Studio 2013, As far as I know the API is required security TSL 1.2, older communication no longer works. I will delivery a good quality for your project. Relevant Skills an More

$155 USD in 3 days
(7 Reviews)

I have been working in software developement for the last 20 years. I have Microsoft certifications in .Net development and sql server. I also have a lot of experience in desktop and web development. Relevant Skills a More

$222 USD in 10 days
(19 Reviews)

Old and New Source Code Relevant Skills and Experience .NET C#, XERO API Proposed Milestones $133 USD - Complete the Task I have 6+ years experience in .NET Technologies

$133 USD in 3 days
(23 Reviews)

Please share me the project volume & complexity. Relevant Skills and Experience .net, c#, sql server , visual studio. Proposed Milestones $150 USD - After finish job

$150 USD in 3 days
(7 Reviews)

Hello there. I can update your Visual Studio C# program to use Net 4.5 instead of 4.0 and use the latest API from XERO. Please send me a message to get started! Relevant Skills and Experience Expert Proposed Mileston More

$200 USD in 4 days
(9 Reviews)

The application needs to be updated using the latest Xero Api and the .NET to 4.5 ( I would suggest latest one here, 4.7). The TLS 1.2 is by default supported by versions > .NET 4.6 Relevant Skills and Experience I More

$150 USD in 7 days
(6 Reviews)
$255 USD in 3 days
(5 Reviews)

Hi I can do this. Recently updated few services to TLS 1.2. I can do this. Hoping for a positive response. Thanks Mahesh

$50 USD in 2 days
(6 Reviews)
$155 USD in 3 days
(3 Reviews)