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SRS HD Audio Lab是个很好用的电脑音效增效工具，我自己一直在用，XP下增强效果尤其给力^_

软件简介：

SRS HD Audio Lab offers the richest and most immersive audio experience in any listening environment using technologies from SRS Labs, the world leader in post-audio processing. It includes the popular SRS TruSurround® HD processing found in a variety of consumer electronics such as television sets, as well as SRS Circle Surround Headphone™ for amazing sound through headphones. SRS TruSurround HD can offer a rich immersive experience and virtual surround sound for your music, movies, and games over only 2 speakers. SRS CS Headphone uses SRS Circle Surround® decoding to deliver accurate virtual surround sound for movie and game content when users listen on headphones.

SRS HD Audio Lab 采用音频后处理领域的领导者 SRS Labs 的技术，可在任何收听环境中提供音色最丰富且最具有身临其境感觉的听觉体验。它包括在电视机等消费性电子产品中使用的流行 SRS TruSurround® HD 处理技术和通过头戴式耳机获得神奇音效的 SRS Circle Surround Headphone™ 技术。SRS TruSurround HD 仅仅使用两个扬声器，就可在音乐、电影和游戏中提供丰富的身临其境式听觉体验和虚拟环绕音效。当用户使用头戴式耳机时，SRS CS Headphone 利用 SRS Circle Surround® 解码技术提供针对电影和游戏内容的精确虚拟环绕音效。

新版的SRS HD Audio Lab换成.net开发的了，未注册版有15天的试用期。程序定义了一个枚举变量来保存软件的授权状态：

public enum AP_Status
{
    [EnumMember]
    kAPS_Authorized = 1,
    [EnumMember]
    kAPS_Invalid = 5,
    [EnumMember]
    kAPS_MultipleInstances = 3,
    [EnumMember]
    kAPS_NoService = 4,
    [EnumMember]
    kAPS_NumStatus = 6,
    [EnumMember]
    kAPS_Trial = 2,
    [EnumMember]
    kAPS_Unauthorized = 0
}

跟进软件验证过程，关键处如下：

  .method private hidebysig instance void
          m_DriverAuthorization_AuthorizeProductCompleted(object sender,
                                                          class SandboxWPF.AudioLabService.AuthorizeProductCompletedEventArgs e) cil managed
  {
    // Code size       156 (0x9c)
    .maxstack  3
    .try
    {
      IL_0000:  ldarg.0
      IL_0001:  ldarg.2
      IL_0002:  callvirt   instance valuetype SandboxWPF.AudioLabService.AP_Status SandboxWPF.AudioLabService.AuthorizeProductCompletedEventArgs::get_Result()//获取授权状态
      IL_0007:  stfld      valuetype SandboxWPF.AudioLabService.AP_Status SandboxWPF.HDAudioLabModel::m_authorizationResult  //赋值
      IL_000c:  ldarg.0
      IL_000d:  ldarg.2
      IL_000e:  callvirt   instance int32 SandboxWPF.AudioLabService.AuthorizeProductCompletedEventArgs::get_Token()
      IL_0013:  stfld      int32 SandboxWPF.HDAudioLabModel::m_AuthorizationToken
      IL_0018:  ldarg.0
      IL_0019:  ldarg.2
      IL_001a:  callvirt   instance int32 SandboxWPF.AudioLabService.AuthorizeProductCompletedEventArgs::get_DaysRemaining()//获取剩余试用天数，这里应该不改也可以
      IL_001f:  stfld      int32 SandboxWPF.HDAudioLabModel::TrialDaysRemaining //赋值
      IL_0024:  leave.s    IL_0069

    }  // end .try

     以下省略n行代码……

    IL_009b:  ret
  } // end of method HDAudioLabModel::m_DriverAuthorization_AuthorizeProductCompleted

将红色处IL代码分别改为：

ldc.i4.1

ldc.i4.5

然后保存。运行程序，试用窗口消失，破解完成^_

附上破解补丁：http://www.ziddu.com/download/14042570/SRSHDAudioLab_CrackedByEddy.rar.html

原版下载