Comments for IE 6 no longer work?

Recently I can not connect comments for IE 6 in html-code. It seems that something happened.



Previously, he confidently used constructions like:

<! - [if IE]>

According to the conditional comment this is Internet Explorer

<! [endif] ->

<! - [if IE 5]>

According to the conditional comment this is Internet Explorer 5

<! [endif] ->

<! - [if IE 5.0]>

According to the conditional comment this is Internet Explorer 5.0

<! [endif] ->

<! - [if IE 5.5]>

According to the conditional comment this is Internet Explorer 5.5

<! [endif] ->

<! - [if IE 6]>

According to the conditional comment this is Internet Explorer 6

<! [endif] ->

<! - [if IE 7]>

According to the conditional comment this is Internet Explorer 7

<! [endif] ->

<! - [if gte IE 5]>

According to the Internet Explorer 5 and up

<! [endif] ->

<! - [if lt IE 6]>

According to the conditional comment this is Internet Explorer lower than 6

<! [endif] ->

<! - [if lte IE 5.5]>

If Internet Explorer is lower or equal to 5.5

<! [endif] ->

<! - [if gt IE 6]>

According to the Internet Explorer this conditional commental is greater than 6

<! [endif] ->

However, since then, IE 6 has stopped responding to comments related to it. I decided at first that I had incorrectly inserted comments, but today I noticed that on a previously working project, too, such comments now stopped working.

Anyone know what happened?

By the way, I build in XHTML 1.0 Strict

UPD. In vain I spread panic seems. Something happened to my browser, it seems, on the other machines everything works :(

UPD2. Glitch was with Multiple IE. Explanation and fix here .