NSIS检测当前默认浏览器

通过读注册表检测当前默认浏览器，读取路径及浏览器名称并判断是否运行调用杀掉进程。
测试环境：WInXP、WIn7、Win10 (IE、360、谷歌、QQ、搜狗、火狐)浏览器都读取有效。其它浏览器未测试。

代码来自：星空不寂寞

XPStyle on
Page instfiles
OutFile "Progid.exe"
Name "Progid"

Section
    ReadRegStr $R0 HKCU "Software\Microsoft\Windows\Shell\Associations\UrlAssociations\http\UserChoice" "Progid"
    ReadRegStr $R2 HKLM "SOFTWARE\Classes\$R0\shell\open\command" ""
    System::Call `shlwapi::PathRemoveArgs(tR2R2)`
    System::Call "shlwapi::PathUnquoteSpaces(tR2R2)"
    System::Call "shlwapi::PathRemoveFileSpec(tR2R3)"
    System::Call "shlwapi::PathStripPath(tR2R2)"
    MessageBox MB_ICONINFORMATION  "当前默认浏览器名称：$R2 $\n$\n安装路径为：$R3"
    killer::IsProcessRunning "$R2"
    Pop $0
    IntCmp $0 1 0 No
        MessageBox MB_YESNO|MB_ICONQUESTION  "检查到浏览器正在运行是否关闭进程？" IDNO +2
    killer::KillProcess $0
    No:
SectionEnd