RegAsm dll .net2.0到.net4.0

Question

我有一个dll使用.Net2.0的regasm注册正常，但是当试图注册.NET4.0 regasm时，我得到错误“无法加载文件或程序集' FILENAMEHERE '或其中一个依赖项。操作不是支持。（HRESULT异常：0x8013515代码和汇编如下

STARTelnet.cs

/**
*Steven T. Norris     Created: 3/27/2012
*Last Updated By: Steven T. Norris     Last Updated On: 3/27/2012
*
*/

using System;
using MinimalisticTelnet;
using System.Net.Sockets;

/**
 * @brief Used to connect to, read, and respond to a STAR terminal session.
 * 
 * Steven T. Norris     Created: 3/27/2012
 */
namespace STARTelnet
{
    /**
     * Class used to connect to, read, and respond to a STAR terminal session. 
     */
    public class STARConnection
    {
        private TelnetConnection conn;
        private string output;
        private string command;
        private string prompt;

        /**
         * Instantiates new STARConnection. <br/>
         * Recommended login timeout is 2000. <br/>
         * Recommended overall timeout is 500. <br/>
         * Throws SocketException, PromptException, LoginException
         * 
         * @param [in] string username:Username for login
         * @param [in] string password:Password for login
         * @param [in] int loginTimeout:timeout milliseconds for login
         * @param [in] int overallTimeout:timeout milliseconds for session
         */
        public STARConnection(string username, string password, int loginTimeout, int overallTimeout)
        {
            output = "";
            conn = new TelnetConnection("HOSTHOSTHOST", 23);
            this.SetTimeout(overallTimeout);
            try
            {
                output = conn.Login(username, password, loginTimeout);
                if(output.Contains("You entered an invalid login name or password"))
                {
                    throw new LoginException("Failed to login");
                }
                this.ParsePrompt();
            }
            catch(Exception e)
            {
                if(e.Message.Contains("login prompt"))
                {
                    throw new PromptException("Login", "Could not find login prompt");
                }
                else if(e.Message.Contains("password prompt"))
                {
                    throw new PromptException("Password", "Could not find password prompt");
                }
                else
                {
                    throw e;
                }
            }
        }

        /**
         * Sets the timeout for the session in milliseconds
         * @param [in] int timeout:timeout for session
         */
        public void SetTimeout(int timeout)
        {
            conn.MainTimeOutMs = timeout;
            conn.TimeOutMs = timeout;
        }

        /**
         * Gets the current timeout for the session in milliseconds
         * @param [out] int:timout for session
         */
        public int GetTimeout()
        {
            return conn.TimeOutMs;
        }

        /**
         * Writes a command to the STAR session
         * @param [in] string command:command to write
         */
        public void Write(string command)
        {
            this.command = command;
            conn.Write(this.command);
            this.command = this.command.Replace("\n", "{newLine}");
        }


        /**
         * Writes a command followed by a new line (\n) to the STAR session
         * @param [in] string command:command to write
         */
        public void WriteLine(string command)
        {
            this.command = command;
            conn.WriteLine(this.command);
            this.command += "{newLine}";
        }

        /**
         * Reads output from STAR session. Assumes no data within given timeout denotes end of stream
         * @param [out] string:output from STAR session
         */
        public string Read()
        {
            output = conn.Read();
            this.ParsePrompt();
            return output;
        }

        /**
         * Reads output from STAR session with timeout changed for only this read. Assumes no data within
         * timeout denotes end of stream.
         * @param [in] int timeout:timeout for this read only
         * @param [out] string:output from STAR session
         */
        public string Read(int timeout)
        {
            int temp = this.GetTimeout();
            this.SetTimeout(timeout);
            this.Read();
            this.SetTimeout(temp);
            return output;
        }

        /*
         * Parse prompt from output
         */
        private void ParsePrompt()
        {
            prompt = output.Substring(output.LastIndexOf("\n") + 1);
        }

        /**
         * Gets output from last read
         * @param [out] string:output from last read
         */
        public string GetOutput()
        {
            return output;
        }

        /**
         * Gets last command entered
         * @param [out] string:last command entered
         */
        public string GetCommand()
        {
            return command;
        }

        /**
         * Gets prompt from last read
         * @param [out] string:last prompt
         */
        public string GetPrompt()
        {
            return prompt;
        }

        /**
         * Checks for connection
         * @param [out] bool:connection status
         */
        public bool IsConnected()
        {
            return conn.IsConnected;
        }
    }

    /**
     * Exception for failed logins
     */
    class LoginException: Exception
    {

        private string offender = "";
        public LoginException() : base() { }
        public LoginException(string message) : base(message) { }

        /**
         * Creates exception
         * @param string offender:element causing exception
         * @param string message:exception message
         */
        public LoginException(string offender, string message)
            : base(message)
        {
            this.offender = offender;
        }

        /**
         * To String method for getting exception string
         * @param [out] string:string representation of exception
         */
        public override string ToString()
        {
            if(offender == "")
            {
                return this.GetType() + ": "+this.Message+"\n"+this.StackTrace;
            }
            else
            {
                return "Incorrect login: " + offender + "--" + this.Message + "\n" + this.StackTrace;
            }
        }
    }

    /**
     * Exception for failed STAR prompts
     */
    class PromptException: Exception
    {

        private string prompt = "";
        public PromptException() : base(){ }
        public PromptException(string message) : base(message){ }

        /**
         * Creates exeption
         * @param string prompt:prompt causing exception
         * @param string message:exception message
         */
        public PromptException(string prompt, string message)
            : base(message)
        {
            this.prompt = prompt;
        }

        /**
         * To String method for getting exception string
         * @param [out] string:string representation of exception
         */
        public override string ToString()
        {
            if(prompt == "")
            {
                return this.GetType() + ": " + this.Message + "\n" + this.StackTrace;
            }
            else
            {
                return "Prompt failed: " + prompt + "--" + this.Message + "\n" + this.StackTrace;
            }
        }

    }
}

AssemblyInfo.cs中

using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;

// General Information about an assembly is controlled through the following 
// set of attributes. Change these attribute values to modify the information
// associated with an assembly.
[assembly: AssemblyTitle("STARTelnet")]
[assembly: AssemblyDescription("")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("COMPANY")]
[assembly: AssemblyProduct("STARTelnet")]
[assembly: AssemblyCopyright("Copyright © COMPANY 2012")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]

// Setting ComVisible to false makes the types in this assembly not visible 
// to COM components.  If you need to access a type in this assembly from 
// COM, set the ComVisible attribute to true on that type.
[assembly: ComVisible(true)]

// The following GUID is for the ID of the typelib if this project is exposed to COM
[assembly: Guid("d7ae512d-c840-4ebc-8057-73a10f286225")]

// Version information for an assembly consists of the following four values:
//
//      Major Version
//      Minor Version 
//      Build Number
//      Revision
//
// You can specify all the values or you can default the Build and Revision Numbers 
// by using the '*' as shown below:
// [assembly: AssemblyVersion("1.0.*")]
[assembly: AssemblyVersion("1.0.0.0")]
[assembly: AssemblyFileVersion("1.0.0.0")]

Answer 1

某些特殊规则适用于像您这样的COM服务器。 .NET 4中的CLR支持CLR的进程内并行版本控制，允许进程承载多个版本的CLR。 这对于COM服务器尤其重要，它解决了以前无法可靠地创建托管shell扩展的CLR版本注入问题。 CLR版本2及更早版本仅在一个进程中支持一个版本的CLR。 由于副作用，无论COM服务器首先加载CLR，都将无法在以后加载需要更高版本CLR的COM服务器。 如果第一个COM服务器加载了1.0或1.1版本的CLR，则特别糟糕。

如果您不想以.NET 4为目标，那么您将不得不要求用户安装.NET 3.5 SP1，以便可以注册服务器。 您还必须为客户端程序提供app.exe.config文件，以告知CLR您知道您的COM服务器是为早期版本的CLR构建的，并且可以使用版本4 CLR运行它。 这样可以防止使用版本2 CLR。 .config文件应如下所示：

<configuration>
    <startup useLegacyV2RuntimeActivationPolicy="true"> 
        <supportedRuntime version="v4"/>
        <supportedRuntime version="v2.0.50727"/>
    </startup>
</configuration>

很明显，对于只有4的用户，你可以将.NET 4作为目标。请记住，如果客户端程序完全是原生的，那么你实际上可能更喜欢加载版本2 CLR，这可能是你测试过的版本你的代码。 版本4具有高度兼容性，但它确实针对您的代码无意中可能依赖的错误修复了许多错误。