Phpmanager in the open MSSQL support, Phpinfo will not come out

PHP Database Extension

Phpmanager in the open MSSQL support, Phpinfo will not come out;
My system is WIN764 bit, with Phpmanager to quickly configure PHP
PHPINFO () can come out after it's done.
Because of the MSSQL database.
So I have to open this extension, but after it's turned on Echo PHPINFO (), it appears:
HTTP Error 500.0-internal Server error
C:\php\php-cgi.exe-FastCGI Process quits unexpectedly
Does anyone know how to solve this problem?

Reply to discussion (solution)

Open the error prompt to see. Php.in Set Display_errors=on Restart the server and try again.

I opened the extension, I can not execute any PHP program, the expansion will not open, I wrote the MSSQL query is useless

Re-uninstall, reinstall, try again.

Now the situation is that the system is windows2008server,iis7.5.php5.2 using FASTCGI configuration
As long as the open MSSQL Extension, PHP script will not run, phpinfo () can not come out!

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