How do I edit the Web.Config file for PHP MySQL. .

Okay I went through everything and made changes. Had to download the PHP Manager and followed instructions. Applied the settings requested. So I did the second and third link. The first one I went back and downloaded the Fiddler Tool and I got the same error as above for the import of the file as well as fiddler came back with some results. But I cannot decifer them. Do you see anything that stands out.

This is the link that took me to use the Fiddler Tool
http://blogs.msdn.com/b/webtopics/archive/2009/01/29/how-to-troubleshoot-http-400-errors.aspx
Fiddler2.png

I'm afraid I have no idea what you are doing.  It looks to me like you sent 48MB and got back 5133 bytes.  But that doesn't tell me what you are doing.

The first link you sent me at the top of the page here. I went through on the first link on the top of that page shown in my last post above.. Since I have gone through the other two links you provided above and fullfilled the tasks there. I cannot figure out why I am still getting the 404.13 Upload Content Length Too Large. So I went back to the first link you provided above.  and went through its information. This link describes how to fix this.
http://blog.zajon.com/2010/11/iis7-file-upload-content-length-too.html
It describes hoe to fix this in the Web.Config File .........and I cannot find it anywhere searching my entire PC. Says there are two locations where a setting in that file needs a modification.....

Also I put in the PHP.INI file the following
; Maximum size of POST data that PHP will accept.
; http://php.net/post-max-size
post_max_size = 2000M

also in the PHP manager I put the following.
Maximum Post Size 2000M
Upload maximum File Size 2000M
I do not know if this helps but I think I am close but Just not quite there.......? Any help is appreciated. Thank you.

It keeps talking about the Web.Config file and it seems to be saying to add the following to it. My problem I cannot find a Web.Config file anywhere. I did find an ApplicationHost.config file. If I have to put it in one of those files One I cannot find and two I wonder if it matters where I put it.....?
 
<system.webServer>
        <security>
            <requestFiltering>
                <requestLimits maxAllowedContentLength="524288000"/>
            </requestFiltering>
        </security>
</system.webServer>

You have been most helpful. In reading the last link you sent I am wondering if you can see what is needed. Otherwise, I am willing to take this offline if you can help me. Dave. I am close I think but I still not able to get past this. I do not have much as I am a small business. But I can send you a gift if you can help me with this. I have spent so many days on this it is killing my business. So if you know how we can connect I will need your expertise. I have a GoToMeeting if you can help please. Thank you.

Wait you were right I looked at the comments a little closer and I may have something testing it now.

Ah Crap after I did the modification on the Request Filtering Which showed the Web.Config setting in it. It broke. I also noticed now I have a Web.Config file in the wwwroot folder that showed up. When I changed the settings under REquest Filtering. Then I noticed the Web.Config file was not changing. So I updated both to match the MAXALLOWEDCONTENTLENGTH. because somehow one does not control both. They both have to be independently changed it would seem.
If you want to look at this with me I can honor my request above.
IIS-RequestFiltering.png
IIS-WebConfig.png

I was using Http://localhost/PHPMyAdmin/ and after i made the adjustments. Now It will not load the IIS server. Any thoughts on what I could try to figure out what happened and why I cannot even login at this point.

I got it to work and accept the download file size. Thank you for the support.