Oracle on dual-/multi- processor server

I have a question regarding Oracle on dual (or multi) processor servers. I have purchased 2 copies of the standard edition. I installed it on the server with 2 processors.
My question is whether or not there is something different in the installation for multi processors.
Another question would be if it is possible to install the database on a dual processor, if you only have a single copy of the license.

The licenses are acquired by CPU or by users and you acquired the license for only 1 processor you must not install it on a server with 2 processors. Your enterprise can have legal problems if that situation occurs.
Joel Pérez

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         Appendix
    HTTPd.Conf (Abstract only), Apache Setup.txt,
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    HTTPd.conf (Abstract only)
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    include "D:\oracle\ora92\Apache\Apache\conf\oracle_apache.conf"
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    INST1_HTTP.CFR.MSSTATE.EDU =
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    (ADDRESS_LIST =
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    (CONNECT_DATA =
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    FIA.CFR.MSSTATE.EDU =
    (DESCRIPTION =
    (ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = TCP)(HOST = yggdrasill)(PORT = 1521))
    (CONNECT_DATA =
    (SERVER = DEDICATED)
    (SERVICE_NAME = FIA.YGGDRASILL.CFR.MSSTATE.EDU)
    EXTPROC_CONNECTION_DATA.CFR.MSSTATE.EDU =
    (DESCRIPTION =
    (ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
    (CONNECT_DATA =
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    (PRESENTATION = RO)
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    (DESCRIPTION_LIST =
    (DESCRIPTION =
    (ADDRESS_LIST =
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    (ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = TCP)(HOST = yggdrasill)(PORT = 1521))
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    (ORACLE_HOME = D:\oracle\ora92)
    (SID_NAME = FIA)
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