在c:/Windows/system32下找到azRoles.dll
如果没有Xp/2003请安装http://www.microsoft.com/downloads/details.aspx?FamilyID=e487f885-f0c7-436a-a392-25793a25bad7&DisplayLang=en.
Win2000请安装http://www.microsoft.com/downloads/details.aspx?FamilyID=7edde11f-bcea-4773-a292-84525f23baf7&DisplayLang=en.
Vs2003/Vs2005/Vs2008命令行，或者Cmd命令行进入.net安装目录
敲入：
d:\Program Files\Microsoft Visual Studio 9.0\VC>tlbimp azroles.dll /out:Microsof
t.Interop.Security.AzRoles.dll /namespace:Microsoft.Interop.Security.AzRoles

成功提示：

Microsoft (R) .NET Framework Type Library to Assembly Converter 3.5.21022.8
Copyright (C) Microsoft Corporation.  All rights reserved.

Type library imported to d:\Program Files\Microsoft Visual Studio 9.0\VC\Microso
ft.Interop.Security.AzRoles.dll

引用这个文件就OK了。