Uninstalling EnTray
Entray cannot be removed through Add / Remove Programs, since there is no formal installation process. To remove EnTray, delete Entray.EXE, the README.TXT and the *.HTM help files in the directory in which you installed EnTray.
EnTray also ships two DLLs - MSVCRT.DLL and MFC42.DLL. If you did not have these DLLs before you installed EnTray, you may delete these DLLs if you want to save space. If you did have the DLLs before you installed EnTray, then it is possible that other applications are using these DLLs, so do not delete them.
In short : Don't delete the DLLs unless you badly need the space on your disk. Most applications which are written in VC++ will need these, so you might as well keep them.