今天在安装LoadRunner 9.0的过程中遇到了一个描述含糊不清的1722 Error Message
点击LoadRunner Full Setup安装LoadRunner 9.0
点击OK安装LoadRunner 9.0以及先决条件（注意WSE 2.0 和 3.0 它都要）
终于！~~~弹出了神奇的Error 1722的Error Message......
这就是那含糊不清的描述...
然后，搜遍Google，找到可怜的仅有的几条相关的条目......如下：
Error Message
While installing ArcGIS the following error can occur and can cause a roll-back of the installation:
"Error 1722. There is a problem with this Windows Installer package. A program run as part of the setup did not finish as expected. Contact your support personnel or package vendor."
Cause
There are several causes to this problem. Please see the solutions below.
Solution or Workaround
Following is a list of the most common solutions to this problem:
·Verify that the person installing has administrative rights on the computer.
·During the installation of the ArcWeb Toolbar, if the installation program adds the .NET Framework, when it returns to the toolbar installation it may display this error.
·Manually register atl.dll.
·Delete all ESRI related .msi or .msp files from the c:\windows\installer or c:\winnt\installer folder.
·Copy contents of cd to a local folder and run setup from there. It is likely that the CD may be scratched and the computer is not able to read it during setup. However, the files may be still be readable during a copy.
基本就是安装SOAP Toolkit 3.0包啊，打开NetBIOS over TCP/IP服务啊，将atl.dll文件在注册表中注册，以及RPC服务等等...尝试后以失败告终 -_-|||
最后，抱着试试看的想法，将DotNet Framework 1.1和DotNet Framework 2.0全部卸载，再重新安装之后，再来只安装上DotNet Framework 2.0
接着，再安装LoadRunner 9.0 —— 成功了！
至于引起问题的原因，初步判断可能是由于DotNet Framework 1.1引起的，因为在另一台只有DotNet Framework 2.0的机器上安装一次成功。但奇怪的是，LoadRunner 9.0的说明上却说它是支持DotNet Framework 1.1的。
不知谁有同样的遭遇，以及如何解决的，和大家分享下。
