I am unable to launch a web app, I am prompted that I need .NET framework 3.5 SP1, even though it is already installed.

Posted on 2011-10-28
Last Modified: 2013-11-07
I get this error with two different OS's(7,XP) and two different versions of IE(8,9). So I am guessing that it isn't os/ie related, because I also have users on the same setups where it works. I am trying to access a local database site on our server, we access it through the web, but it is locally hosted. The page brings up a popup web app , but I have users that arent getting the popup and the website just appears to be loading , but never fully loads. I've attached the prompt message below.

Thanks in advance,   error
Question by:KH_IT

    Author Comment

    ps. I've disabled the popup blocker and set the security settings to medium-low in ie to troubleshoot this and I it still doesnt work
    LVL 77

    Expert Comment

    by:David Johnson, CD, MVP
    it checks the user agent in the browser and looks for  "runtimeVersion = "3.5.30729"

    if the installer runs on your system change the javascript to just look for "3.5" versus '3.5.30729' this will be on your iis server
    LVL 77

    Accepted Solution

    that or through windows updates you will need to get service pack 1 for .net 3.5

    Author Comment

    @ ve3ofa : thanks for the suggestions, I will try to implement this fix and get back to you when I do so.

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