<s>
Cobian	B-Application
Backup	I-Application
was	O
a	O
free	O
,	O
donation-supported	O
backup	B-Application
software	I-Application
for	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
It	O
is	O
written	O
in	O
Delphi	B-Language
by	O
Luis	O
Cobian	B-Application
of	O
Umeå	O
University	O
.	O
</s>
<s>
Cobian	B-Application
Backup	I-Application
was	O
originally	O
released	O
in	O
2000	O
.	O
</s>
<s>
Its	O
source	O
code	O
was	O
later	O
released	O
under	O
the	O
Mozilla	B-License
Public	I-License
License	I-License
in	O
late	O
January	O
2007	O
.	O
</s>
<s>
However	O
,	O
with	O
version	O
9	O
the	O
author	O
of	O
Cobian	B-Application
Backup	I-Application
decided	O
to	O
switch	O
back	O
to	O
a	O
completely	O
closed	O
source	O
model	O
.	O
</s>
<s>
Older	O
versions	O
will	O
remain	O
Open	O
Source	O
forever	O
,	O
as	O
the	O
release	O
of	O
the	O
program	O
under	O
the	O
Mozilla	B-License
Public	I-License
License	I-License
cannot	O
be	O
revoked	O
.	O
</s>
<s>
In	O
February	O
2021	O
Luis	O
Cobian	B-Application
announced	O
the	O
start	O
of	O
development	O
on	O
a	O
successor	O
program	O
,	O
Cobian	B-Application
Reflector	O
.	O
</s>
<s>
Cobian	B-Application
Backup	I-Application
supports	O
Unicode	O
,	O
FTP	B-Protocol
,	O
compression	O
(	O
ZIP	B-General_Concept
,	O
SQX	B-Application
,	O
7z	O
)	O
,	O
encryption	O
(	O
including	O
Blowfish	B-Algorithm
,	O
Rijndael	B-Algorithm
,	O
DES	B-Algorithm
,	O
RSA-Rijndael	O
)	O
,	O
incremental	B-General_Concept
and	O
differential	B-General_Concept
backup	I-General_Concept
,	O
for	O
example	O
a	O
differential	B-General_Concept
backup	I-General_Concept
every	O
night	O
(	O
which	O
backs	O
up	O
user	O
files	O
that	O
have	O
changed	O
since	O
the	O
last	O
full	O
backup	B-Application
)	O
and	O
a	O
full	O
backup	B-Application
every	O
seventh	O
night	O
(	O
backing	O
up	O
a	O
full	O
set	O
of	O
user	O
files	O
)	O
.	O
</s>
<s>
Backups	B-Application
can	O
be	O
saved	O
to	O
CD	O
,	O
DVD	O
,	O
USB	O
memory	O
stick	O
,	O
a	O
second	O
hard	O
drive	O
(	O
internal	O
or	O
external	O
)	O
,	O
etc	O
.	O
</s>
<s>
It	O
supports	O
long	O
file	O
names	O
(	O
32,000	O
characters	O
)	O
for	O
all	O
backup	B-Application
routines	O
.	O
</s>
