i use total commander for my file explorer. i dont know if you can do it with the stock file explorer beccause i never tried. total commander is free if you dont have it already.
1. Open Total Commander
2. Browse to the "Windows" folder
3. Find the file: thread_sms.htm
4. Press to edit with the little notebook below from Total Commander
You will see the following HTML Code:
____________________________________
<html XMLNS:Inbox>
<head>
<object id="HTMLFormFactory" CLASSID="clsid:29d48cf7-ed6a-4a9d-a17a-ae9115c07a90" />
<?IMPORT NAMESPACE="Inbox" IMPLEMENTATION="#HTMLFormFactory" />
<link rel="stylesheet" href="file://\windows\thread_style.css" type="text/css" />
</head>
<body>
<Inbox:ThreadIFrame>
<Inbox:content id="THREADIFRAME" links />
</Inbox:ThreadIFrame>
<div id="threadbottom">
<hr class="divider" size="1" />
<Inbox:ComposeBodyCount>
<Inbox:content ID="COMPOSEBODYCOUNT" format="%1!d!/%2!d!%4 (%3!d! messages)" title />
</Inbox:ComposeBodyCount>
<Inbox:ComposeSubject class="sms">
<Inbox:content id="COMPOSESUBJECT" width="98%" height=35 spell focus count links noclearonbackpresshold limit=0 autocap inserttab scroll />
</Inbox:ComposeSubject>
</div>
</body>
</html>
____________________________________
go and find:
<Inbox:content id="COMPOSESUBJECT" width="98%" height=35 spell focus count links noclearonbackpresshold limit=0 autocap inserttab scroll />
Replace the height "35" with "90" or what ever you like