I had this issue before and bookmarked it before SAP bought businessobjects and now that solution forum thread no longer exists. But there is some problem with updating the registry when installing sp2 or Sp4 on Crystal Reports XI 2.
After the successfull install of SP4 upon restarting the application I receive the following messages:
"Please wait while windows configures Crystal Reports XI Release 2"
"Server Busy... switch... Retry"
Every time I start Crystal Reports I have to clear these annoying messages before I can use the application. Does anyone on this forum recall how to fix this nagging issue? I recall there is some registry hack to perform that remedies this issue but I don't remember the specifics. Thanks!!!