If i use this way to add ,VS said "A reference to'c:\decnetdl.dll" could not be added. This is not a valid assembly or com component. Only assemblies with extension'dll' and com component can be referenced. Pleae make sure that the file is accessible , and that it is a valid assembly or com component." Error messageRight click on the References in the solution explorer and browse for your dll file.
Thank you very much .It is powerful toolsThe dll files that you try to refer to is not a manage code. So you cannot refer it in the VS 2005. Anywhere, you may have to explore other 3rd party toos to look for the entry point, eg:
http://www.heaventools.com/PE_Explorer_Exports_Viewer.htm