WSS triggers debugging is not supported under current trust level settings Error

After TFs is installed, I opened vs2005 yesterday and suddenly found that Program Debug, the error message "debugging is not supported under current trust level settings" is displayed.

This problem may occur because "C: \ Program Files \ common files \ microsoft shared \ vs7debug \ PDM. dll" is not registered ",
Run regsvr32.exe "C: \ Program Files \ common files \ microsoft shared \ vs7debug \ PDM. dll.

the current situation is obviously not the cause. Remember that WSS installation has also encountered this problem in order to install the project server. WSS is also required for TFs installation, so this issue should be the same. The last time we solved this problem, we created a new website to expand to WSS to keep the default website clean. When creating a web program, we chose defaappapppool in the application pool, so there is no problem. When installing TFS, although he has created a website team Foundation server, it also adds filter to the default website. Go to the Internet to find a solution. First find the two blog:
http://realise-systems.net/blog/jsaull/archive/2004/05/04/411.aspx
http://wss.collutions.com/Lists/FAQ/DispForm.aspx? Id = 139
I tried to modify webconfig under wwwroot and webconfig of the web program. After modification, the error message "debugging is not supported under current trust level settings" does not appear, however, this page is always displayed when you run or browse the Web program:
I decided to go back to the starting point and find a solution to change webconfig to the original state, something strange happened. I re-opened the project and did not see the debugging is not supported under current trust level settings error message. You can also debug it. It's really strange. However, the WSS error page still appears. And found the two blog:
http://hotsoho.net.cnblogs.com/archive/2005/04/27/146598.html
http://www.cnblogs.com/djshow/archive/2005/01/11/89650.html
on the problem of some in-depth understanding, and later with friends also discussed it really did not find a good solution.
This is mainly because TFs and vs2005 are installed on the same system. Finally, a new website is created to debug the web program. It is worth noting that the new network station can not use port 80 under vs2005, but must use port 80 under vs2003. If vs2003 is used, the default website can only be stopped, allow the new website to use port 80.