Plesk control panel throwing 500 internal server error

[yatint]

Hello

After upgrading plesk from 10.5 to 11 I am getting this error ;

HTTP Error 500.0 - Internal Server Error
C:\Program Files (x86)\Parallels\Plesk\admin\bin\php-cgi.exe - The FastCGI process exited unexpectedly
Detailed Error Information
Module FastCgiModule
Notification ExecuteRequestHandler
Handler PleskEngine-FastCGI-php
Error Code 0xc0000005
Requested URL https://localhost:8443/index.php
Physical Path C:\Program Files (x86)\Parallels\Plesk\admin\htdocs\index.php
Logon Method Anonymous
Logon User Anonymous

I tried plesk repair and websrvmng

Edit : I found this error in error_log :

The HTTP Filter DLL C:\Program Files (x86)\Parallels\Plesk\Additional\Php\sapi\php4isapi.dll failed to load. The data is the error.

But my PHP version is 5.0

How to fix this ?

Please assist.

Thanks

 

[yatint]

issue fixed ... I removed php4 from updates and upgrades
then go to regedit at this path :

HKEY_LOCAL_MACHINE\SOFTWARE\[Wow6432Node\]Plesk\PSA Config\Config\PLESKCP_PHP_MODE value changed to"fastcgi".