To run Crystal Reports from web server the server needs to be able to run 32 bit web application on the SBS/Windows Server 2008/2011 server.

Sometimes this causes compatibility issues the links below have possible solutions. []

When Exchange is installed on the same box it configures an RPC HTTP proxy which does not run in 32 bit mode.

The file rpcproxy.dll is a windows system file and we suggest to check these solutions to modify the settings to be able to run 32 bit applications from IIS. 

if owa -

ClickHome - Construction Software