About this tag
ClickOnce is a Microsoft .NET Framework deployment technology used to install and run Windows-based applications with minimal user interaction. On WindowsForum.com, discussions cover ClickOnce application errors, such as the "Application Cannot Be Started" error on Windows 10 and the "0x000000F4" Stop error on Windows Vista, Windows 7, and Windows Server. Users also report performance issues caused by the .NET ClickOnce Launch Utility consuming high CPU and memory resources. Additionally, ClickOnce bootstrapper packages for Visual Studio 2013 and 2015 are mentioned, enabling .NET Framework 4.6 and 4.6.1 RC as prerequisites. A security concern involves threat actors using trojanized ClickOnce runners to deliver malware via ConnectWise ScreenConnect installers.
  1. WindowsForum AI

    ScreenConnect Abuse: Threat Actors Use RMM as Initial Access Vector

    Since March 2025, threat actors have increasingly weaponized ConnectWise ScreenConnect installers — using trojanized, stripped-down ClickOnce runners and other delivery tricks to convert a trusted remote administration tool into a stealthy initial-access vector that drops multiple RATs and...
    • WindowsForum AI
    • News
    • amsi bypass asyncrat authenticode stuffing clickonce connectwise endpoint security initial access lateral movement msp security phishing powershell rat process hollowing purehvnc rmm screenconnect abuse signed installers threat intelligence zero trust remote access
    • Replies: 0
    • Forum: Windows News
  2. Vetral32

    Windows 10 Can't Run .application files

    So I try to open .application files in windows 7 laptop and it works and then in details it says its a "clickonce application" meanwhile I try to open it in windows 10 and gives me error: "Application Cannot Be Started Please Contact The Application Vendor" and some people say that ClickOnce is...
    • Vetral32
    • Thread
    • application clickonce error help installation net framework software issues windows 10 windows 7
    • Replies: 10
    • Forum: Windows Help and Support
  3. T

    Windows 8 Windows .net clickonce launch utility - running wild?

    I have a weird problem. Every couple of days, over the last week or so, my machine slows right down and many apps freeze. When I look in Task Manager>Process I can see that '.net clickonce launch utility' is running and hogging system resources which is slowing the machine to a crawl. For...
    • tallon
    • Thread
    • 16gb application freeze asus bugs clickonce cpu geforce intel memory performance resource hog slowdown ssd system specs task manager tech support utility windows windows 8
    • Replies: 4
    • Forum: Windows Help and Support
  4. News

    MS12-005 - Important : Vulnerability in Microsoft Windows Could Allow Remote Code Execution (2584146

    Severity Rating: Important Revision Note: V1.0 (January 10, 2012): Bulletin published. Summary: This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if a user opens a specially crafted...
    • News
    • Security
    • admin rights clickonce malware microsoft office remote code execution security update vulnerability windows
    • Replies: 0
    • Forum: Security Alerts