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(edited) This is a freeware Windows-based desktop application which works after 16 pop-up errors are cancelled. several server links inside the code are now invalid. I believe SQLITE was used for the application or part of it. The program either crashes or simply fails to continue once it tries to reach those outdated endpoints. Your task is to trace every call that relies on these links, repair or replace them, and confirm that the whole application runs smoothly again on current Windows builds. You will receive the existing program files. I did not create this program so I do not have the full project "source code." This program is designed to search using isbn or the title of a book. It returns marc data (.mrc) files from open source libraries. I can provide a demo showing this program working. along with a short document that highlights the screens and features affected. After your fixes are in place I need an executable that installs cleanly. useful for me to also get the updated source code. all outdated server links are pointing to third party services. They should be deleted. I have a google account but no backend infrastructure. I want the popups eliminated so I can run the program cleanly. On start-up, i get 16 error pop-ups. After the 16 pop-ups, the program runs. Deliverables • Corrected source code with working server references • Compiled installer/executable verified on Windows 10 & 11 • A brief change log explaining what was updated and where Once the app launches, connects, and performs each feature without throwing errors, I’ll consider the job complete and release payment. Let me know any questions you have about the codebase or architecture and I’ll respond quickly so you can get started right away.
Project ID: 40639297
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137 freelancers are bidding on average $132 USD for this job

The 16 startup pop-ups strongly suggest the application is still trying to initialize or validate against multiple obsolete third-party endpoints. The important part here is not just suppressing the errors, but tracing where those calls originate and determining whether each one is required for the ISBN/title search and MARC retrieval workflow. I would first identify the executable/runtime, inspect the available binaries, libraries, configuration and database files, map the failing endpoints, and trace their callers. Where an endpoint is non-essential, I’d remove the dependency cleanly; where it is required for core search/MARC retrieval, we should confirm the current data source/API before replacing it. I’d then validate the full workflow on Windows 10 and 11 and produce a clean installer plus the recoverable/updated source where technically possible. One important question: what exactly will you provide besides the executable, such as DLLs, config/database files, installer files or any partial source? That will determine whether this is a source-level repair or requires reverse engineering.
$140 USD in 7 days
8.6
8.6

Hi, I can help repair this Windows application and remove the obsolete third-party server dependencies causing the 16 startup error popups. I have analyzed the supplied files briefly and I am familiar with similar error and I have ideas how it can be fixed. I will also verify the SQLite functionality, ISBN/title search, and MARC .mrc retrieval, and test the repaired application on Windows 10 and 11. Since you do not have the complete original source code, I will first determine what can be recovered or patched from the files you provide. The demo and feature document will be useful for confirming that the repaired application behaves as intended. My goal is to restore the application so it launches cleanly and performs its original ISBN/title search and MARC retrieval functions without relying on the obsolete third-party services.
$119 USD in 3 days
8.4
8.4

⭐⭐⭐⭐⭐ Fix and Update Your Windows Application for Smooth Functionality ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project requirements and noticed you're looking for someone to fix your Windows-based application. You don’t need to look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for application updates and fixes. I will trace every call that relies on outdated server links, repair or replace them, and ensure the entire application runs smoothly on current Windows builds. ➡️ Why Me? I can easily fix your application issues as I have 5 years of experience in software development, specializing in debugging, and application updates. My expertise includes working with SQLite, troubleshooting, and creating clean installers. Besides, I have a strong grip on other relevant technologies, ensuring a comprehensive approach to your project. ➡️ Let's have a quick chat to discuss your project in detail. I’ll showcase samples of my previous work, demonstrating my ability to resolve similar issues efficiently. Looking forward to discussing this with you in our chat. ➡️ Skills & Experience: ✅ Software Development ✅ Debugging ✅ SQLite Management ✅ Code Repair ✅ Application Testing ✅ Error Handling ✅ Installer Creation ✅ Windows Compatibility ✅ API Integration ✅ Data Handling ✅ Troubleshooting ✅ Change Log Documentation Waiting for your response! Best Regards, Zohaib
$150 USD in 2 days
6.6
6.6

Hello Sir/MAM The program currently search by both ISBN and book title and successfully download/save .mrc files ? 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 , Ubuntu , OpenAI , Desktop Applications. Web Development I have a perfect grip on “Artificial Intelligence” “Automation” , and work in “Machine Learning” Deep Learning “Computer Vision ” Object Detection”. 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 USD in 1 day
6.3
6.3

From the screenshots, the app is hitting dead/parked domains (HugeDomains) and also appears to use a legacy IE/WebBrowser component, which is producing JavaScript errors on modern sites such as YouTube. I can help you trace and repair the failing endpoints rather than simply patching the visible errors. I’ll identify every hard-coded/server URL, replace or correctly reroute obsolete endpoints, fix the embedded-browser compatibility where needed, and verify each affected workflow on Windows 10/11. The final source will remain buildable, with a clean executable/installer and a concise change log of every endpoint and code section modified.
$250 USD in 7 days
5.8
5.8

Hello, I understand the real challenge here isn't rewriting the app — it's carefully reverse-engineering compiled files (likely without full source), tracing every dead server call, and safely removing or replacing them without breaking SQLite data handling or the MARC/ISBN search logic. My approach: Diagnosis: Decompile/inspect the binaries to trace all 16 startup error triggers back to their invalid endpoints. Cleanup: Remove or replace dead third-party server references, ensuring SQLite operations and ISBN/title search continue functioning locally. Stability Fixes: Resolve crash points where the app currently fails on outdated calls, ensuring smooth runs on Windows 10/11. Delivery: Corrected source code, a clean installer/executable, and a clear change log detailing exactly what was fixed and where. I bring solid experience in Windows desktop debugging, legacy C#/C++ codebases, and SQLite-based applications — comfortable working without full source and rebuilding missing pieces methodically. Best regards
$30 USD in 1 day
5.3
5.3

Hello, I can repair the freeware Windows based desktop application. Leave me a message to discuss more details. I am looking forward to working with you, Fahad.
$150 USD in 1 day
4.8
4.8

✋ Hi There!!! ✋ REPAIRING WINDOWS DESKTOP APP LINKS AND REMOVING STARTUP POPUP ERRORS • Tracing and deleting sixteen invalid third party server endpoints causing startup popups • Fixing network request calls to restore clean ISBN and title search functionality for MARC data • Ensuring SQLite database calls and local data storage operate smoothly without crashes • Compiling updated executable installer verified for clean startup on Windows 10 and 11 • Delivering modified source code alongside concise change log documentation for future maintenance <-- Questions --> 1. Are you able to share the decompiled or extracted project files so we can verify whether C# or C++ was used? 2. Should we remove the broken library endpoints entirely or replace them with working open source MARC data APIs? We have debugged legacy Windows desktop applications and repaired broken API endpoints without original source files. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!
$30 USD in 7 days
4.9
4.9

Hi, Aleksandar here, from Serbia, to help you. A desktop application with 16 startup errors needs the failing network calls traced first, rather than simply suppressing the pop-ups and leaving broken functionality behind. I noticed you don't have the original project source and that the outdated endpoints point to third-party services. I’d trace the application’s endpoint dependencies, identify the SQLite/data layer where applicable, remove obsolete calls safely, and produce a clean Windows 10/11 build with the changes documented. I’ve worked with desktop software, C#, databases, APIs, debugging, and Windows deployments. Quick question: do you have the original executable plus any available DLLs/configuration files, and do you have permission to modify and redistribute this freeware application? Looking forward to working with you.
$450 USD in 7 days
4.9
4.9

I will swiftly restore your Windows desktop application's broken server links by updating the endpoints in the codebase. This will ensure seamless functionality on both Windows 10 and 11. I'll provide a detailed change log of all modifications made for future reference. You'll receive a user-friendly installer that will work flawlessly on both operating systems, along with the updated source code. I aim to not only fix the current issue promptly but also establish a long-term partnership for maintaining and enhancing your software. I look forward to working closely with you to achieve a successful outcome for your desktop application.
$225 USD in 5 days
4.6
4.6

Hi, This sounds like a classic case of brittle hardcoded endpoints that need to be updated to match the current server setup. The real risk isn’t just fixing the links—it’s making sure nothing else breaks when you switch them, especially if the old endpoints were still referenced in places the client hasn’t flagged. I’ve worked on similar cleanup projects before, where the tricky part was tracing all the indirect calls through the codebase that weren’t obvious at first. For example, on one app I had to walk through layered C# services that pulled URLs from multiple config files and database tables, which isn’t always visible from the surface. I’d start by mapping every place the app makes network calls, then systematically replace each invalid link with the correct one, testing each change step by step. The hardest part is usually the silent dependencies—background jobs, scheduled tasks, or third-party components that expect the old URLs but don’t log errors clearly. One unknown is whether any endpoints are now rate-limited or require new authentication headers. I’d handle that by testing the updated build under load and adding simple retry logic if needed, rather than overengineering it upfront. Let me know if you can share the source structure or any of the highlighted screens, and I’ll get started right away. Thanks, Denis.
$150 USD in 3 days
4.6
4.6

Hello there. I hope you are donig well. I have successfully tackled similar issues in the past, where I updated and repaired links in Windows desktop applications, ensuring they function seamlessly with current server endpoints. My strong background in C# and debugging enables me to efficiently identify and fix these link failures. I understand that your application is currently facing critical issues due to outdated server links, causing crashes and failures. My approach will involve tracing every call dependent on these links, updating them, and thoroughly testing the application to ensure smooth operation across Windows 10 and 11. I will provide you with corrected source code featuring working server references, a compiled installer that runs flawlessly, and a detailed change log. My commitment to high-quality work and best practices ensures that your application will not only be functional but also reliable for future updates. Please feel free to reach out to me. I look forward to working with you. Best regards, Billy Bryan
$118 USD in 3 days
4.4
4.4

Hello There! I’m Md Toriqul Islam, and I’m excited to partner with you. I have rich experience in Windows desktop applications, debugging, reverse engineering, SQLite, API troubleshooting, and creating reliable installers. I am skilled in C#/.NET, Windows applications, SQLite, HTTP/API calls, endpoint troubleshooting, error handling, and application packaging. I understand you need to remove outdated third-party server calls, eliminate the 16 startup popups, restore ISBN/title-based MARC searching, and deliver a clean executable plus updated source code. I’m ready to start immediately and can trace the existing application behavior, remove unnecessary endpoints, test all features, and verify compatibility on Windows 10 and 11. Looking forward to hearing from you. Best regards, Md Toriqul Islam
$100 USD in 3 days
4.8
4.8

Hello. I'm Davide, I'm here to help you. I understand you need a Windows desktop app repaired so outdated server links stop breaking execution. I’ll trace every endpoint in the source, replace the invalid URLs with current server references, then verify the affected flows with logging around the failing calls and Application Performance Monitoring so crashes or silent stops are isolated quickly. After that I’ll rebuild the installer, test the executable on Windows 10 and Windows 11, and return the corrected source plus a brief changelog covering each fix and file touched. Which screens or features are most critical to validate first after the link repairs? I can start immediately and you can get good results within 2 days. Looking forward to hearing from you. Best regards, Davide
$60 USD in 2 days
4.1
4.1

Hello! We can fix the broken links and stabilize your Windows desktop app. 1. Can you share the existing files and the demo showing the app working? 2. Do you want us to remove the outdated endpoints entirely or replace them? — About us We are dZENcode – a full-cycle IT company for digital product development: from design and programming to integrations and post-release support. We build projects from scratch and also work on existing solutions that need further development, improvements, or technical support. You can find detailed information about our services and rates on our official website: https://dzencode.com. Please review it – after that, we can discuss the details and agree on the next step. ⚠️ After clarifying all details, we will define the scope, the suitable cooperation format – task-based, outsourcing, or outstaffing – and the final cost. Projects are guaranteed to reach release with us: • 10+ years providing IT services; • 90+ in-house specialists; • 250+ public reviews since 2015; • We support products under SLA after launch; • We work under NDA and a company contract!
$140 USD in 7 days
4.3
4.3

Hi there! Your Windows application is failing because outdated server endpoints are breaking important calls and causing crashes or failed processes. The main need is to identify every affected connection and restore reliable functionality on current Windows versions. I have experience with Windows desktop applications, C#, C++, debugging, API/server integrations, and software testing. I can trace the existing network calls, identify invalid endpoints, and update the code while keeping the current application flow stable. I will review the full source and affected screens first. I will trace each server request and replace or repair outdated references. Then I will test the complete application on Windows 10 and 11. I will provide the corrected source, clean executable/installer, and a clear change log. check our work https://www.freelancer.com/u/ayesha86664 Could you share the source code and affected-features document so I can review the architecture and server calls? Let me know if you’re interested & we can discuss it. Best Regards Ayesha
$100 USD in 4 days
4.0
4.0

Hi, I am a Windows desktop developer with 8 years of rich experience in software development, with a background in maintaining and debugging existing applications. I am familiar with C#, C++, SQLite, Windows desktop applications, debugging, reverse engineering existing binaries, API/endpoint troubleshooting, software testing, and Windows 10/11 deployment. For this project, I can trace the startup calls causing the 16 pop-ups, identify and remove the obsolete third-party server dependencies, then verify the ISBN/title search and MARC file workflow still works correctly. Since the full source may not be available, I can first inspect the executable, local files, configuration, and SQLite data to determine the safest repair path before rebuilding the installer. I'm an individual freelancer and can work in any time zone you want. Please contact me with the best time for you to have a quick chat. Looking forward to discussing more details. Thanks. Emile.
$140 USD in 7 days
4.2
4.2

Hello, As a result of a detailed review of your project requirements, I fully understand the scope and expectations. I have experience with Windows desktop applications, C#/.NET debugging, SQLite, legacy application repair, endpoint tracing, software testing, and Windows 10/11 deployment, and I’m available to start your project right now. In my opinion, the key challenge is that the original source code is incomplete, so the first step is identifying whether the application is .NET or native code, then tracing the 16 startup errors and every obsolete third-party server call without breaking the working ISBN/MARC search functionality. I would inspect the executable, configuration files, SQLite database, logs, and network calls; remove or replace dead endpoints; eliminate unnecessary startup pop-ups; and verify that book searches and .mrc downloads still work correctly. If the application is .NET, I can also assess how much usable source can be recovered and rebuilt. I’ll provide the repaired executable/installer, available updated source, Windows 10/11 testing, and a concise changelog. One quick question: • Can you send the current EXE/installer plus the demo and affected-screen document for initial inspection? Best regards, Carlos.
$30 USD in 7 days
4.2
4.2

As an experienced developer skilled in C# and C++, I'm confident that I can tackle the task of repairing the server links in your Windows-based desktop application. I've dug deep into many different codebases, familiarizing myself with programs created by other developers. Hence, even though you don't possess the full project "source code," it shouldn't prohibit me from comprehending and reviving your application effectively. In addition to my strong debugging capabilities, my software testing expertise will be an asset throughout this project. After repairing or replacing the outdated server links in every call that relies on them, I'll thoroughly ensure that your app runs smoothly on all current Windows builds, eliminating any persisting error pop-ups, and delivering you an executable that installs cleanly. Going beyond mere solving of problems, I have a commitment to delivering high-quality solutions on time which aligns with your expectations. You'll be delivered not only the corrected source code and working server references in your deliverables but also a brief change log documenting the updates made and their locations within the codebase. With my skills, dedication and decades-long experience in this domain, I am sure, as long as you provide me with all the necessary information, we can accomplish this job nicely.
$140 USD in 7 days
4.1
4.1

Hi, I can inspect and repair your Windows desktop app so it stops showing startup popups and works cleanly again on Windows 10/11. I will first review the existing executable/files, SQLite database if present, affected screens, and the demo showing expected behaviour. Then I’ll trace the invalid third-party server calls, remove or replace outdated links, disable unnecessary popups, and test the ISBN/title search flow for MARC .mrc file retrieval from valid open-source library sources. I’m comfortable with Windows desktop debugging, C#/C++ app inspection, SQLite, broken endpoint tracing, error-popup removal, installer creation, and testing legacy applications where full source code may not be available. Deliverables will include: * App inspection and fault tracing * Removal of outdated server calls * Startup popup fix * ISBN/title search testing * SQLite check if used * Updated executable/installer * Windows 10/11 verification * Change log of fixes * Updated source/project files where recoverable or available If full original source code is not provided, I will be clear about what can be repaired directly and what can be reconstructed or documented. I’ll focus on making the app launch cleanly, run without repeated errors, and keep the working book/MARC search features stable. Best regards Ankit
$100 USD in 3 days
3.6
3.6

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