Well, it started with an UAC alert asking if I would allow "jucheck.exe" to make changes to my computer, and me being concerned about the fact that the Publisher was "unknown". I did some internet searching, and couldn't decide what to do. Some forums say it's ok because even though UAC didn't display the Publisher as being Sun Microsystems, when you do a File Search and view the properties it does say Sun Microsystems. Other forums say it's a virus or trojan because it's "in the wrong folder" (meaning, if it under Programs\Java it's ok, but if it's under Windows\System32 it's not ok). So, I did the File Search for "jucheck.exe" to see where it was located, and it returned 4 hits: 1) Program Files\Java\jre6\bin 2) Program Files (x86)\Java\jre6\bin 3) Windows\System32 4) Windows\SysWOW64 Putting the "is it a virus/trojan" discussion aside, why are there 4 copies on my PC? I know that 64-bit Programs will install under both Program File folders, but I don't think "jucheck.exe" needs to ALSO be under the Windows folders...right??? Thanks in Advance!!!