Question : HTTP 500 ERROR CODE : UKNOWN REASON

We've just installed a mysoft application and had to set up IIS services with it.  When we try to access the server through internet explorer we get the HTTP 500 ERROR CODE.  I unchecked the show friendly http error messages in internet explorer and this is what I recieved:

SiteInformation.clsSiteInformation error '8004270f'

NOT SUCCESSFUL. Reason: Unable to retrieve detail for an unknown reason. -2147467259 - [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified

/LM/W3SVC/1/ROOT/global.asa, line 43

This is very urgent so does anyone have a clue on how I can go about fixing this?

Answer : HTTP 500 ERROR CODE : UKNOWN REASON

It looks like the database that IIS is trying to retrieve information from is not being found (147467259 - [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified).

I'd check the ODBC setup (administrative tools -> Data Sources).