I have a SBS 2003 Server that is fully patched. Exchange and SharePoint are installed. Exchange is used and the MDBDATA folder is located on a secondary drive. SharePoint is not used. Symantec BackupExec is installed and the catalog files are on a secondary drive. SQL is running for monitoring, BackupExec, and SharePoint but the database files are relatively small. Log files are kept to 2MB each. Something is continously, a couple hundred MB daily, eating away at free space on the system drive. I have not installed file monitoring software. Any ideas has to what may be eating up free space on the system drive?