Database Engine Tuning Advisor Error

启动Database Engine Tuning Advisor出现错误：
When you use Database Engine Tuning Advisor to analyze the performance effects of workloads in Microsoft SQL Server 2005, you may receive the following error message:
R6031- Attempt to initialize the CRT more than once. This indicates a bug in your application.
  
1.修改注册表

Click Start, click Run, type regedit, and then click OK.

Locate the following registry subkey:

HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers
HKLM\Software\Microsoft\WindowsNT\CurrentVersion\AppCompatFlags\Layers(这个路径也要检查）

In the right pane, right-click the registry entry for the Explorer.exe process, and then click Delete.

In the Confirm Value Delete dialog box, click Yes.

Exit Registry Editor.

Restart the computer.

 
2.删除环境变量__COMPAT_LAYER
Also please check if an environment variable __COMPAT_LAYER is set?
"set __COMPAT_LAYER=" , basically disabled the compat layer and dta ran OK
 

相关链接：
microsoft
http://support.microsoft.com/Default.aspx?kbid=913395