During the installation of Symantec Mail Security for Microsoft Exchange (SMSMSE) 6.x you see an error that indicates that the installer could not register an EXE and a DLL file.
Manually register the DLL and EXE file. Before you manually register the DLL and EXE files you must know the path to the files you need to register.
To manually register the DLL file on 32 bit systems (Server 2000 and 2003):
cd <drive>:\Program Files\Symantec\SMSMSE\<version>\Server
To manually register the DLL on 64 bit systems (2003 x64 and 2008):
cd <drive>:\Program Files (x86)\Symantec\SMSMSE\<version>\Server
To manually register the EXE (7.5.0 and earlier)
To manually register the EXE (7.5.1 and later)