how to update .net framework 3.5 to 4.0 for IIS7 ?

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i put my asp.net project on IIS7 but it gives error that .net framework 3.5 is not a targeted framework. i downloaded and installed framework 4.0 but still doesn't work. what could be the problem??

Posted 27-Apr-14 20:51pm

Basit Elahi

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 1 · 2014-04-27T20:57:00

Solution 1

Refer - How to: Upgrade an ASP.NET Web Application to ASP.NET 4[^].

Quote:
It is recommended that you use Visual Studio to perform the tasks that are required in order to upgrade. If you do not use Visual Studio to perform the upgrade automatically, you must manually edit the Web.config file and must manually associate the application in IIS with the .NET Framework version 4.

Posted 27-Apr-14 20:57pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

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Basit Elahi 28-Apr-14 3:13am

my project was developed in 4.0 but where i am deploying it, that pc has framework 3.5

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 28-Apr-14 3:44am

If your Project is developed in IIS 4.0, then it should work fine in IIS. No need to downgrade that to 3.5.

DamithSL · Answer 2 · 2014-04-27T21:23:00

You need to check the app pool of your web application having correct .net framework or not.
Go to IIS and click on Application Pools. Can you see application pool starting with ASP.NET 4.0? if it is there, you have successfully registered .net 4.0 on IIS.
if you don't have 4.0 app pool try below steps in the answer
How to add ASP.NET 4.0 as Application Pool on IIS 7, Windows 7[^]