sept. 11
Crystal Reports may generate some temporary files ('*.tmp', '*.rpt') in a temp folder (typically the c:\windows\temp folder or you temp folder in "Local Settings"). This is not a big deal because these files are quite small (between 0k and 200k for the ones I have seen during my investigations) but it can be a potential problems as they are very numerous (till 10 for a single export) and contains some potentially sensitive information (some data of your exports).

Check here how to correct this problem ! [Plus]