Adding browseui.dll to the project

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Hi all, I'm trying to develop an add-on for IE, and I want to add browseui.dll to my project, but I can this error message

A reference to "C:\BROWSEUI.DLL" could not be added. Please make sure that the file is accessible, and that is a valid assembly or COM componenet.

Does anyone have idea what's wrong?
Thanks in advance.

Posted 20-Sep-12 1:14am

hahik2001

Updated 20-Sep-12 1:53am

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[no name] 20-Sep-12 7:24am

Sure it's either not a valid .NET assembly or it's not a COM component just like it says.

hahik2001 20-Sep-12 8:31am

Actually I wanted to use that dll for adding a button to the IE status bar, can I achieve it in another way?

[no name] 20-Sep-12 9:00am

Try P/Invoke for the functions that you want to use.

Rock (Multithreaded) 20-Sep-12 7:58am

All dlls are not same.
This is not a valid dll for .net

hahik2001 20-Sep-12 8:31am

Actually I wanted to use that dll for adding a button to the IE status bar, can I achieve it in another way?

Rock (Multithreaded) 20-Sep-12 10:33am

You can create your own status bar.

Rock (Multithreaded) 20-Sep-12 10:36am

WebBrowser Component provides all these features.

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Sergey Alexandrovich Kryukov · Accepted Answer · 2012-09-20T07:22:00

If this not a valid .NET assembly or a COM component, you will need to use P/Invoke. To learn it, please see:
http://en.wikipedia.org/wiki/Platform_Invocation_Services[^],
http://msdn.microsoft.com/library/en-us/vcmxspec/html/vcmg_PlatformInvocationServices.asp[^].

This CodeProject article can also be useful:
Essential P/Invoke[^].

Another alternative could be using C++/CLI, especially if the library file is written in C++ or C and you have the header files. You can create additional a mixed-mode project (managed+unmanaged) which would serve as an interface between native unmanaged code and .NET. You can wrap unmanaged code into managed "ref" C++/CLI classes/structures, make public what you need to use, and use the resulting executable as a regular .NET assembly, by referencing it in your C# project. Please see:
http://en.wikipedia.org/wiki/C%2B%2B/CLI[^],
http://www.ecma-international.org/publications/standards/Ecma-372.htm[^],
http://msdn.microsoft.com/en-us/library/xey702bw.aspx[^],
http://msdn.microsoft.com/en-us/library/3bstk3k5[^].

Everything else solely depends on what's in that library.

Good luck,

—SA