Can't include Microsoft.Security.Application?

Question

I can't include Microsoft.Security.Application

using Microsoft.Security.Application;

Gives this error:

The type or namespace name 'Security' does not exist in the namespace 'Microsoft' (are you missing an assembly reference?)

And yes, I clicked on Bin -> Add Reference... -> AntiXSSLibrary.dll and it added it to the Bin Folder including the AntiXSSLibrary.xml.

I rebuilt the whole website, and still nothing.

I'm using ASP .NET 3.5 C# - AntiXSSLibrary 4.0 Stable

is AntiXSSLibrary.dll the correct library? It doesn't seem to agree with you. — asawyer
– asawyer, Commented May 12, 2011 at 14:56
Are there any warnings/messages? Look at your output window. — Polity
– Polity, Commented May 12, 2011 at 14:56
No Warnings/Messages. And what you mean is the correct library. Offcourse it is. — Danpe
– Danpe, Commented May 12, 2011 at 14:59
Is there a naming conflict? A class called Mirosoft? Try adding the namespace using global ( using global::Microsoft.Security.Application; ) — Polity
– Polity, Commented May 12, 2011 at 15:00
Right mouse button on your website -> Convert to webapplication (for me this solved alot of problems coming with Website projects in the past) although i dont really understand why. Else, create a new website and try and reproduce the problem. If you cant, try and find the differences — Polity
– Polity, Commented May 12, 2011 at 16:33

Jose Walter SANTAMARIA GARCIA · Accepted Answer · 2016-01-29 22:45:18Z

30

If you get this nuget all extention objects are visibles

Install-Package AntiXSS

it solves my problem.

html = Microsoft.Security.Application.Encoder.HtmlEncode(model.SiteName), model = Microsoft.Security.Application.Encoder.HtmlEncode(json),

answered Jan 29, 2016 at 22:45

Jose Walter SANTAMARIA GARCIA

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Charles Burns · Accepted Answer · 2016-03-02 00:00:56Z

5

Uninstall and re-install AntiXSS:

Tools --> NuGet Package Manager --> Package Manager Console (UI may differ if using other than Visual Studio 2013):

Uninstall-Package AntiXSS
Install-Package AntiXSS

For multi-project solutions, be sure to set the default project to whichever one is experiencing the problem. Use Uninstall-Package -Force AntiXSS if uninstall fails and if you can handle any package dependency problems that may arise, though I know of none for this package.

answered Mar 2, 2016 at 0:00

Charles Burns

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Community · Accepted Answer · 2017-05-23 11:46:19Z

2

Right mouse on your website -> Convert to webapplication. See: How To Convert ASP.NET Website to ASP.NET Web Application

edited May 23, 2017 at 11:46

CommunityBot

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answered May 14, 2011 at 20:52

Polity

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Druid · Accepted Answer · 2011-10-20 15:51:23Z

2

If, like me, you're using AntiXSSLibrary in a class library via Nuget, and got the above error:

Remove all external references that you had through Nuget
Remove the Nuget package file - which is packages.config found in the solution's root directory
Remove the packages directory - again in your solution's root directory
Reinstall all your components again

answered Oct 20, 2011 at 15:51

Druid

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MiddleKay · Accepted Answer · 2013-07-29 03:17:15Z

1

The answer here helped me. I found the AntiXssLibrary.dll on my site's bin folder.

answered Jul 29, 2013 at 3:17

MiddleKay

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Shehan Silva · Accepted Answer · 2021-10-14 04:08:27Z

1

Install-Package AntiXSS from Tools --> NuGet Package Manager

answered Oct 14, 2021 at 4:08

Shehan Silva

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Shree Harsha · Accepted Answer · 2017-09-01 11:50:16Z

0

You are using using Microsoft.Security.Application;

Try this using System.Web.Security.Application;

For me, it was the other way round. I think it is due to different versions of my AntiXSSScripting dll I'm using.

answered Sep 1, 2017 at 11:50

Shree Harsha

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