Just thought I would post this as it relates to a problem I had earlier. Windows 2000 Pro, TDS-3 and error messages. Earlier i had warnngs about tojan/virus from TDS-3 app concerning what amounted to empty rundll32.exe files (0 KB). After running various recommended apps, we determined that there was not a problem, just deleted empty rundll32 files and all was OK. Recently I started losing access to non-system applets in control panel. Started getting error message when selecting applets that stated "Access to specified device, path, or file is denied.". Read various posts on newsgroups, tried countless scans with Norton AV and TDS-3, nothing showed up. After fruitless posts to newsgroups, various fixes based on Google searches I ran across a web page that mentioned control panel applets in registry with rundll32.exe mentioned in the same breath. I performed a search and lo and behold I once again had empty rundll32 files in various locations. I had earlier deleted TDS-3 app, thinking it might have been a culprit (possibly having a similar cpl filename as another app). When after a couple of weeks of not being able to fix problem I had re-installed tds-3 in a new folder. Installation and running of app appears and appeared to be good. Strangely enough, both the C drive root folder and the new tds folder had the empty rundll32.exe file. Once I copied the 10KB rundll32.exe file from thw WINNT system32 folder into the root drive folder, I got access back to the contriol panel. Sorry this is rambling but a fter getting prepared to reformat/backup if anyone has an idea of what might be causing this or what to look for I certainly would appreciate it. I'm not even sure if TDS-3 is supposed to have Rundll32 in its folder as well.