i'm trying to add asp.net feature on windows 7 i tried to turn it on using turn windows features on or off but it fails every time

so i download web platform installer and try it that way and it fails also

next i uninstall .net framework 4 restart again! and reinstall it and try again the previous steps but it fails the same

i need this installed so i can view it on iis7

anyone know what i can do with this to get it working i've searched and searched and everything fails

i get this error on the web platform installer Failed with 0x80070643 – Fatal Error during installation

please help i cant do my work with out it working :(

ok i did a few things now get this error

Server Error in '/pulse' Application.

Parser Error

Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.

Parser Error Message: Could not load type 'pulsesite.MvcApplication'.

Source Error: Line 1: <%@ Application Codebehind="Global.asax.vb" Inherits="pulsesite.MvcApplication" Language="VB" %>

Source File: /pulse/global.asax Line: 1 Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET


i know its ust about changing the code but i'm not good with c# anyone know how?

asked on Server Fault Nov 23, 2010 by sam

3 Answers


this might help somebody else... I just spent 10 minutes trying to figure out this same issue.

Check if your project is actually marked for Build in Configuration Manager. For some reason my MVC4 project was not checked.

answered on Server Fault Feb 19, 2012 by Hector

You might wanna register asp.net with iis. So install iis using the features and then execute the command "aspnet_regiis.exe -i" with the Visual Studio Command Prompt.

answered on Server Fault Nov 23, 2010 by Fabian

Check the System Event log for ASP.NET and related events. Then you can confidently search the web for information on the relevant errors you find.

Also, the path to the ASP.NET 4.0 IIS tool is:

%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe -i

Another method is to browse to the v4.0.30319 directory and find the file. If you can find it, hold down the shift key and right-click aspnet_regiis.exe. Choose copy as path, then paste into the command prompt with the -i flag. If it isn't in the directory, you have other problems. ;)

answered on Server Fault Nov 30, 2010 by unhappyCrackers1

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