User agent string

Question

Browser Name: Microsoft Internet Explorer

Browser Version: 4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; InfoPath.2; .NET4.0C; .NET4.0E)

What the exact version of embeded browser? I see 4.0, but in brackets there is MSIE 7.0

score 1 · Accepted Answer · edited May 23 '17 at 11:55

MSIE 7.0 indicates that the specific version is Microsoft Internet Explorer 7.0.

You have to read the whole string, not just the first part. I'm pretty sure that the first part actually says "Mozilla/4.0", which just means that the browser is compatible with Mozilla 4.0. This is reported for historical reasons and to address issues arising from the widespread practice of "browser sniffing".
A question was just asked yesterday about why Google Chrome and Internet Explorer put "Mozilla" in their user agent string.

You should also read the answers to this similar question, which explain why IE reports two different version numbers in its user agent string.

I just find out more explanation that seem's legit: http://www.technologyquestions.com/technology/internet-explorer/485301-ie-8-actually-mozilla-product.html#post1776436 — FR6, Sep 21 '11 at 19:23

score 1 · Answer 2 · answered Feb 03 '12 at 13:20

1

You can always check the exact output of the user agent string by pasting it into http://www.useragentstring.com/ so it looks like IE8 in compatibility mode IE7

answered Feb 03 '12 at 13:20

gmariust

11
1

score 0 · Answer 3 · answered Feb 27 '11 at 09:08

MSIE 7.0 -> Internet Explorer 7.0

And here is the exact meaning of all information you have:

http://msdn.microsoft.com/en-us/library/ms537503%28v=vs.85%29.aspx

It must be Mozilla/4.0: "For historical reasons, Internet Explorer identifies itself as a Mozilla 4.0 browser."

User agent string

3 Answers3