If you find the following error in log file in the directory C:\WINDOWS\system32\LogFiles\W3SVC2\:
sc-status = 500 sc-substatus = 0 sc-win32-status = 193
You need to deactivate the flag in your Internet Explorer:
-> internet options
-> show friendly HTTP error messages.
Then please exceute the test URLs again and see if you get the error like the following:
%1 is not a valid Win32 application
If so, this indicates that you are trying to run a 64bit application on 32 bit server.
If you have installed a 64Bit version of the content server then please be sure that your IIS is not configured as 32 bit version.
If the parameter W3SVC/AppPools/Enable32BitAppOnWin64 is set to true then only 32 bit applications can run with IIS.
This behavior is explained in SAP note 1008299.