Any free programs to check OS version, browser and screen resolution?

"You can do these things by writing a HTML page with JavaScript unless you have some specific requirement for which you need any free app.

You can get the info in following way:

OS:

function yourOS() {
var ua = navigator.userAgent.toLowerCase();
if (ua.indexOf(""win"") != -1) {
return ""Windows"";
} else if (ua.indexOf(""mac"") != -1) {
return ""Macintosh"";
} else if (ua.indexOf(""linux"") != -1) {
return ""Linux"";
} else if (ua.indexOf(""x11"") != -1) {
return ""Unix"";
} else {
return ""Computers"";
}

}

Screen Resolution:

(screen.width>=1024) && (screen.height>=768)

Browser:

var browser=navigator.appName;

var b_version=navigator.appVersion;

var version=parseFloat(b_version);"