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I’m ready to release the next version of my Windows-based desktop application and need a developer who can take the current build, incorporate the planned feature updates, and package a clean, fully-tested installer. You’ll receive the existing source code, UI mock-ups for the new screens, and a concise change log outlining bug fixes and enhancements. Key goals • Refactor and extend the present code so the new functionality feels native, not bolted on. • Maintain compatibility with Windows 10 and 11. • Produce an installer that supports silent and standard setups. Once you have everything running smoothly on a staging machine, I’d like a brief hand-off session covering what changed, how to compile, and how to push future hotfixes. If you have solid experience shipping polished Windows desktop apps—especially in C#, .NET, or similar frameworks—this should be a straightforward engagement.
Project ID: 40563771
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163 freelancers are bidding on average €170 EUR for this job

Hello! I am Windows Desktop application developer and I have over 15 years of experience with C#, Windows Forms and .NET. Also, I have extensive experience with building installers . Since there is short project description, could you share more details? Thanks.
€97 EUR in 3 days
8.6
8.6

Since 2015 I have been working in C/C++/C# programming and 10(ten) years of experience in C/C++/C# programming. Windows Desktop Application, Console Application, Image Processing and have knowledge in Driver Development in C. Expert in data structure building and Object Oriented Programming (OOP). Have a great experience in C++ MFC and C++ WinUI 3 for GUI design and development. Also expert in C/C++ GPU CUDA programming. If you want a good delivery of the project, then send me a message, please.
€250 EUR in 7 days
7.4
7.4

Hello, I will integrate your feature updates and bug fixes so they feel native to the existing codebase, verify everything on Windows 10 and 11, and deliver a clean installer supporting both silent and standard setups. On a recent .NET desktop project, I built the installer with WiX and caught three edge cases during staged rollout that would have broken silent installs. I will apply that same rigor here. Questions: 1) What framework is the current app built on (WPF, WinForms, .NET MAUI)? 2) Do you use a specific installer toolchain already, or is that open? Happy to jump on a quick call to review the change log together. Looking forward to talking through the details. Kamran
€34 EUR in 10 days
7.0
7.0

As an experienced software developer with a specific focus on Windows Desktop applications, I am confident in my ability to carry out your project goals effectively. Having been in the field for over a decade, I have an impressive track record of delivering top-notch projects that meet and exceed client expectations. My expertise in C#, .NET, and similar frameworks align perfectly with your need to refactor and enhance the present code, ensuring that the new functionality feels native and not bolted on. Maintaining compatibility with Windows 10 and 11 is paramount, and I can assure you that I am well-versed in handling such requirements. In fact, I recently completed a project where I installed an AI bot on both MacOS and Windows OS successfully. This not only affirms my technical skills but also demonstrates my adaptability across various platforms. To put your mind at ease after the upgrade, our brief hand-off session will cover everything from compile to future push hotfixes. With my dedication to providing high-performance and scalable solutions coupled with my talent for detailed explanations, you can be sure that the transition process will be seamless. Contact me today and let's take your desktop application to greater heights!
€30 EUR in 1 day
7.2
7.2

Hello, I'm Abu Gosia I'm interested in your project very well. I'm good in C#, .Net Core, MVC, ASP.NET, Angular.js, Yii2, PHP, Laravel, Codeigneter, Wordpress, Prestashop, Open Cart. I m quite well experienced in these jobs. Let's go ahead with me. Thanks
€175 EUR in 8 days
6.9
6.9

Hi there, ★★★ C# / .NET Expert ★★★ I can help you with the next version of your Windows-based desktop application. I will refactor the existing code to incorporate the planned feature updates seamlessly. This will ensure that the new functionality feels native and not just added on. I’ll also ensure compatibility with Windows 10 and 11, and produce a polished installer that supports both silent and standard setups. Once everything is running smoothly on a staging machine, I’ll provide a brief hand-off session to cover the changes made, how to compile the application, and how to implement future hotfixes. Ready to get started!
€30 EUR in 10 days
7.0
7.0

I have extensive experience in C# programming and developing Windows desktop applications using .NET framework. I am confident in my ability to refactor and extend the existing code to incorporate the planned feature updates seamlessly. I will ensure compatibility with Windows 10 and 11 and deliver a clean, fully-tested installer that supports silent and standard setups. I am familiar with conducting hand-off sessions and providing documentation for future maintenance. My expertise in C# and .NET makes me well-suited for this project. See the above links please. Please go through my profile its 15 years old see the work I did over the years. ---> No Win No Fee means that your satisfaction is my utmost priority. <---- Lets discuss the job details. Moreover, I am willing to start the job and perform tasks without even being hired; it is just to show my commitment to this project. Looking forward to hear from you. Regards Shah
€158 EUR in 5 days
6.8
6.8

Hello Sir/MAM I am a skilled full stack developer. Having rich experience in Java , C++ , C , C# , Python , Eclipse , Sql , Mysql , .Net ,Oracle , Object Oriented Programming , Data Structure , Algorithms, Linux , Windows , Cloud , Azure . I have a perfect grip on “Artificial Intelligence” “Automation” , and work in “Machine Learning” Deep Learning ”. My track record as demonstrated in my 100% job completion and 5-star review rating showcases My ability to deliver exceptional results on time and with utmost quality I believe that my skill set makes me the ideal candidate for this project Please come on chat we will discuss more about this I will be waiting for your reply . Thanks and Best Regards
€140 EUR in 1 day
6.5
6.5

Hi, Your project is exactly the kind of release work that benefits from understanding the existing code before adding new features. I can take over the current Windows application, refactor the code where needed, implement the new functionality cleanly, fix the listed issues, and ensure everything works smoothly on both Windows 10 and 11. I’ll also create a reliable installer with silent and standard installation support, test it thoroughly, and provide clear build and deployment documentation for future updates. One question: is the application built with WinForms, WPF, .NET MAUI, or another framework? Give me this task, and I'll make your next release smoother than the Windows Update everyone actually wants. Looking forward to building it together. Dev S.
€250 EUR in 4 days
6.6
6.6

Hello, the main challenge here is ensuring that the new features feel seamlessly integrated into the existing architecture without disrupting the user experience. Refactoring the current code will be crucial to achieve this, especially with the need for compatibility across Windows 10 and 11. I’ve worked on several desktop applications where I’ve had to enhance existing features while ensuring a smooth transition. Recently, I updated a Windows app using C# and .NET, where I not only added new functionality but also improved performance and usability based on user feedback. This involved creating a robust installer that handled both silent and standard setups, which aligns with your requirements. For your project, I’d start by reviewing the existing codebase to identify areas for refactoring. Next, I would implement the planned features as per your mock-ups while maintaining the integrity of the original architecture. Once everything is stable on a staging environment, I’d prepare the installer and conduct a hand-off session to guide you through the changes and future updates. Looking forward to discussing how we can make this version a success. Thanks, Denis.
€150 EUR in 3 days
5.9
5.9

Greetings, I have read the project description but haven't found any details requirements open a chat to discuss requirements in details. Regards
€250 EUR in 7 days
5.6
5.6

Hello! I understand you're looking for a developer to enhance your existing Windows desktop application, integrate new features cleanly into the current codebase, and deliver a polished, production-ready release with a reliable installer. I can review your existing source code, implement the planned functionality based on your UI mockups and change log, refactor where needed to keep the architecture maintainable, and ensure full compatibility with Windows 10 and 11. The application will be thoroughly tested before packaging with a professional installer that supports both standard and silent installations. I'll also provide well-commented source code, a concise handover session covering the implemented changes, build process, and deployment workflow, so future updates and hotfixes can be managed with confidence. Regards, Davide
€140 EUR in 7 days
5.2
5.2

★•══•★ Hi client ★•══•★ I have experience developing and maintaining Windows desktop applications using C# (.NET / WPF / WinForms), including refactoring legacy codebases, implementing new features cleanly, and delivering production-ready installers with stable release workflows. My approach will be: ✔️ First, I will review your existing source code and UI mock-ups to understand the current architecture, identify refactoring needs, and plan how to integrate the new features without disrupting existing functionality. ✔️ Then, I will implement the new screens and enhancements in a way that feels fully native to the current application, ensuring compatibility with Windows 10 and 11 while improving structure, performance, and maintainability. ✔️ Finally, I will package a clean, fully tested release build with a professional installer supporting both silent and standard installation modes, followed by a staging validation and a handover session covering build steps and future hotfix deployment. My question is: is your current application built using **WPF or WinForms**, or a hybrid/custom framework? Best regards. Rico
€200 EUR in 3 days
5.1
5.1

The client wants to ship the next version of a Windows desktop app: take existing source, add planned features per mockups and changelog, keep Win10/11 compatibility, build a silent+standard installer, and do a hand-off session. No URL to inspect. Here's the proposal. --- Two things stood out: the new screens must feel native and not bolted on, and you need an installer that handles both silent and standard setups. That's a code-quality problem first, packaging second, so I'd start by reading your changelog against the current build to map where the new features slot in cleanly. How I'd run it: 1. Merge your mockups and changelog into the existing code, refactoring shared components so the new screens match the current UI, not sit beside it. 2. Test against clean Windows 10 and 11 VMs to catch runtime and .NET dependency gaps before packaging. 3. Build the installer (silent /quiet flag plus standard UI) and verify both on a fresh staging machine. I ship polished C#/.NET desktop software and have handled the full loop from source refactor to signed installer and hand-off docs. Done = both installer modes verified on clean Win10 and Win11, all changelog items closed, and a hand-off session covering compile plus hotfix steps. €162 covers the work above across 7 days. Do you want code-signing on the installer included now, or added as a later hotfix? Waqar P.S. If the app targets .NET Framework rather than .NET 8, silent installs often fail on machines missing the exact runtime version. I'd bundle the runtime check into the installer so silent setups don't die quietly on a fresh Windows 11 box.
€162 EUR in 7 days
5.5
5.5

Hello Dear! I’m Md Toriqul Islam, and I’m excited to partner with you & I can dive into your project immediately. I have rich experience in Windows desktop application development, C#, .NET, code refactoring, and software deployment. I understand you need to enhance your existing Windows application by implementing new features, refining the codebase, fixing issues, and delivering a fully tested installer compatible with Windows 10 and 11. I’ve worked on similar desktop projects with smooth release and maintenance workflows. I am skilled in C#, .NET, Windows applications, installers, debugging, and code optimization. I’m ready to start immediately and would be happy to discuss this project. Looking forward to hearing from you. Best regards, Md Toriqul Islam
€60 EUR in 3 days
5.4
5.4

As an experienced developer with a decade of exceptional work in modern coding languages, I can skillfully overhaul and augment the codebase of your Windows desktop app to seamlessly integrate new features. My in-depth understanding and expertise in C#, .NET, and other relevant frameworks will ensure that your app retains compatibility with Windows 10 and the latest version, Windows 11. With my proven proficiency in producing robust installers designed for both standard and silent setups, you can be confident in releasing a polished product. One important aspect when upgrading any software is making sure that the new functionality doesn't feel "bolted on." This is precisely why my clients value my skills: I take great care to refactor and extend code to maintain a seamless flow throughout the app. My Agile Development approach guarantees I'll quickly grasp project’s requirements, allowing a smooth transition into implementing them effectively. Apart from delivering top-notch work, I’m also committed to knowledge sharing. Following completion, I’d be happy to conduct a comprehensive hand-off session to familiarize you and others involved with the changes made during this upgrade. My dedication to continued education ensures that I always stay at par with emerging technologies, making me the ideal fit for this project's needs. Let's build something great together!
€140 EUR in 7 days
5.3
5.3

Your requirements are clear, and I'm confident this can be delivered with accuracy, quality, and zero unnecessary complexity. I've reviewed your requirements, and I can enhance your existing Windows desktop application by implementing the planned features, refactoring the code where needed, and delivering a stable, production-ready build. The goal is to ensure the new functionality integrates seamlessly while maintaining compatibility with Windows 10 and 11. What I'll deliver: Implement new features and bug fixes with clean, maintainable code. Refactor existing modules to keep the application stable and scalable. Create a fully tested installer supporting both standard and silent installations. Provide documentation, a hand-off session, and guidance for future updates. A few quick questions: Is the application built with C#/.NET (WinForms/WPF) or another framework? Which installer are you currently using (Inno Setup, WiX, NSIS, etc.)? Will I be working from a Git repository or a local source package? Regards, Solves Inn
€100 EUR in 4 days
5.0
5.0

Hi, I can take your current Windows desktop app, implement the planned features, refactor so everything feels native, and deliver a polished installer supporting both standard and silent setups—fully tested on Windows 10 and 11. I’ll work from your source, UI mockups, and change log; stabilize on a staging machine; and provide a concise hand‑off on changes, build/compile steps, and hotfix deployment. Plan/tech: C#/.NET (WinForms/WPF/MAUI as applicable), CI-ready builds, MSI/EXE packaging with WiX or Inno, code signing, and regression/unit tests around key areas. Estimated cost and timeline: share code size, framework/version, and installer preference (WiX/Inno) and I’ll confirm a fixed quote and delivery window promptly. Best regards, Muhammad Usman
€220 EUR in 2 days
4.9
4.9

Hi, We will integrate your planned features into the existing codebase, fix the logged bugs, and deliver a tested installer supporting both silent and standard setups. For the installer, we will use WiX or Inno Setup with per-machine and per-user options. This keeps upgrades clean and avoids registry conflicts across Windows 10 and 11. A couple of quick things to confirm: 1) Is the current codebase in C#/.NET (WPF, WinForms), or another framework? 2) Do you need code signing for the installer? The number quoted here is a starting estimate. The exact cost and timeline will be confirmed after we go through the full scope together. Looking forward to potentially working together. Thanks, Faizan
€34 EUR in 10 days
4.9
4.9

Hello, Your project reads less like a simple “feature update” task and more like a **release engineering + desktop application modernization engagement** — which is exactly the right way to approach a Windows app that is about to ship a new version. From your brief, I understand that the goal is not just to add a few screens and package an installer, but to take the current application build, integrate the planned updates in a way that feels **native to the existing product**, preserve stability across **Windows 10 and 11**, and leave you with a clean release package plus enough hand-off knowledge to maintain future hotfixes with confidence. ## How I would approach the project I’d treat this as a controlled release cycle rather than a patch job, with the focus on three outcomes: ### 1) Review the current build and define the safest implementation path Before touching the code, I would review the existing source, the UI mock-ups, and the change log to identify: * where the new functionality fits naturally in the current architecture, * which areas can be extended directly, * which parts would benefit from targeted refactoring before adding features, * and whether there are any release risks tied to dependencies, configuration, installer logic, or Windows 10/11 compatibility. This first pass is important because it prevents the new version from feeling bolted on and helps avoid introducing technical debt while implementing the requested updates. ### 2) Refactor only where it improves maintainability and release quality If parts of the current codebase need cleanup in order to support the new screens or behaviors properly, I would do **targeted refactoring** rather than broad rewrites. The goal would be to keep the release efficient while still improving areas that directly affect: * maintainability, * feature integration, * UI consistency, * and long-term hotfix velocity. ### 3) Implement the feature updates and bug fixes in a release-safe way Once the structure is clear, I would integrate the planned enhancements based on your mock-ups and change log, while also addressing the requested fixes. The priority here is not just “making it work,” but ensuring the new functionality feels like part of the original application flow rather than an afterthought. ### 4) Build, stage, test, and package a clean installer After development, I would prepare a release-ready build, validate it on a staging machine, and package the application into a clean installer that supports: * **standard installation** * **silent installation** I would also verify installation behavior, application startup, and the main user flows under both Windows 10 and Windows 11 to reduce deployment surprises after handoff. ### 5) Provide a practical hand-off for future maintenance A proper hand-off matters as much as the code itself, especially if you plan to push future fixes internally or through another developer. I would include a short walkthrough covering: * what changed in the codebase, * how to build and package the application, * where the updated functionality lives, * and the cleanest way to handle future hotfixes or minor release updates. ## What I can deliver If we move forward, I can support the project with: * targeted review of the existing codebase and release scope * feature integration based on the provided UI mock-ups and change log * focused refactoring where needed to keep the codebase maintainable * bug fixing and stabilization of the updated build * packaging of a polished Windows installer with standard and silent setup support * staging validation and release-readiness checks * a concise hand-off session/documentation for build, compile, and future hotfix workflows If the current application is built in **C# / .NET**, this is very much in my lane. My focus would be to leave you with a version that is not only updated, but also **cleaner to maintain, safer to ship, and easier to patch going forward**. If you’d like, I can start by reviewing the current stack and answering one practical question that will help define the release path immediately: **Is the existing application built with WinForms, WPF, or another .NET desktop framework, and do you already have a preferred installer technology in place (MSI / Inno Setup / WiX / NSIS), or should that be proposed as part of the delivery?**
€300 EUR in 30 days
4.8
4.8

Germany
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