One more Css3Pie not working with border-radius - css

Question

i read a ton of similar problems and test all solutions but no one works...
this is my css:
.button
{
background-image:url(../Immagini/pulsante.jpg) !important;
background-color:#004878;
padding:0.4em 1em;
text-decoration:none !important;
border-radius:5px 5px 5px 5px;
border:1px solid #C5DBEC;
font-weight:bold;
cursor:pointer;
margin-right:0.1em;
overflow:visible;
position:relative;
text-align:center;
display:inline-block;
behavior: url(../Scripts/css3Pie/PIE.php);
}
i add a simply alert in the file (even in the htc ones) and it's shown so the file is loaded.
as you can see i use the php version to avoid server problem but nothing change
i try even to remove !important in css but still it didn't work
What i miss?
EDIT
this is my folder structure:
ROOT
-->Defalut.aspx
-->Pages
-->Page.aspx
-->Scripts
-->cs3Pie
-->PIE.php
-->all other css3Pie...
-->Css
-->Style.css

Answer 1

From css3pie.com about behavior:
Note: this path is relative to the HTML file being viewed, not the CSS file it is called from.
Just you absolute path
-ms-behavior: url("http://css3pie.com/pie/PIE.htc");
or path relative to html:
/* You need to use this code if your html file in <site>/index.php
And PIE-file in <site>/Scripts/css3Pie/PIE.php
Also check if your get access to PIE-file from your browser
via link like http://<site>/Scripts/css3Pie/PIE.php
*/
-ms-behavior: url("/Scripts/css3Pie/PIE.php);
> Working example on CodePen (tested in ie8)