imp system/manager@db fromuser=tom touser=tom file=C:\file.dmp log=C:\file.log

AT TO BEGINNING I get this error:
Connected to: Oracle9i Enterprise Edition Release 9.0.1.1.1 - Production
With the Partitioning option
JServer Release 9.0.1.1.1 - Production

Export file created by EXPORT:V08.01.07 via conventional path
import done in WE8DEC character set and AL16UTF16 NCHAR character set
import server uses WE8MSWIN1252 character set (possible charset conversion)
export client uses WE8ISO8859P1 character set (possible charset conversion)
export server uses UTF8 NCHAR character set (possible ncharset conversion
I think the problem is due to this.