get Windows Browser versions

get-browser-versions.bat

@echo off

:: BEGIN: ensure all variables stay local:
setlocal

:: BEGIN: define config variables:
set versions_file="versions.txt"
:: END: define config variables:


:: INFO: handle Microsoft Internet Explorer:
set query_internetexplorer=reg query "HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer" /v Version
set find_internetexplorer=findstr /I /L /C:"REG_SZ"

:: INFO: handle Mozilla Firefox:
set query_firefox=reg query "HKEY_LOCAL_MACHINE\Software\Mozilla\Mozilla Firefox" /v CurrentVersion
set find_firefox=findstr /I /L /C:"REG_SZ"

:: INFO: handle Apple Safari:
set query_safari=reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Apple Computer, Inc.\Safari" /v Version
set find_safari=findstr /I /L /C:"REG_SZ"

:: INFO: handle Google Chrome:
set query_chrome=reg query "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\Google Chrome" /v Version
set find_chrome=findstr /I /L /C:"REG_SZ"


:: INFO: write JSON header:
@echo { > %versions_file%

:: INFO: write Internet Explorer data:
for /f "Tokens=2*" %%u in ('%query_internetexplorer%^|%find_internetexplorer%') do (
@echo "internetexplorer":{"version":"%%v"}, >> %versions_file% ) 
)

:: INFO: write Mozilla Firefox data:
for /f "Tokens=2*" %%u in ('%query_firefox%^|%find_firefox%') do (
@echo "firefox":{"version":"%%v"}, >> %versions_file% ) 
)

:: INFO: write Apple Safari data:
for /f "Tokens=2*" %%u in ('%query_safari%^|%find_safari%') do (
@echo "safari":{"version":"%%v"}, >> %versions_file% ) 
)

:: INFO: write Google Chrome data:
for /f "Tokens=2*" %%u in ('%query_chrome%^|%find_chrome%') do (
@echo "chrome":{"version":"%%v"} >> %versions_file% ) 
)

:: INFO: write JSON footer:
@echo } >> %versions_file%


:: END: ensure all variables stay local:
endlocal

(This was used in 2011, unsure if it still works at this point)