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Copyrights and Legal Notices
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UPX and the UCL library are free software; you can redistribute them and/or modify them under the terms of the
GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at
your option) any later version.
UPX and UCL are distributed in the hope that they will be useful, but WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; see the file
COPYING.
SPECIAL EXCEPTION FOR COMPRESSED EXECUTABLES
The stub which is imbedded in each UPX compressed program is part of UPX and UCL, and contains code that is
under our copyright. The terms of the GNU General Public License still apply as compressing a program is a
special form of linking with our stub. Hereby Markus F.X.J. Oberhumer and Laszlo Molnar grant you special
permission to freely use and distribute all UPX compressed programs (including commercial ones), subject to the
following restrictions:
1. You must compress your program with a completely unmodified UPX version; either with our precompiled
version, or (at your option) with a self compiled version of the unmodified UPX sources as distributed by us.
2. This also implies that the UPX stub must be completely unmodfied, i.e. the stub imbedded in your compressed
program must be byte-identical to the stub that is produced by the official unmodified UPX version.
3. The decompressor and any other code from the stub must exclusively get used by the unmodified UPX stub for
decompressing your program at program startup. No portion of the stub may get read, copied, called or otherwise
get used or accessed by your program.
ANNOTATIONS
You can use a modified UPX version or modified UPX stub only for programs that are compatible with the GNU
General Public License.
We grant you special permission to freely use and distribute all UPX compressed programs. But any modification
of the UPX stub (such as, but not limited to, removing our copyright string or making your program non-
decompressible) will immediately revoke your right to use and distribute a UPX compressed program.
UPX is not a software protection tool; by requiring that you use the unmodified UPX version for your proprietary
programs we make sure that any user can decompress your program. This protects both you and your users as
nobody can hide malicious code any program that cannot be decompressed is highly suspicious by definition.
You can integrate all or part of UPX and UCL into projects that are compatible with the GNU GPL, but obviously
you cannot grant any special exceptions beyond the GPL for our code in your project.
We want to actively support manufacturers of virus scanners and similar security software. Please contact s if you
would like to incorporate parts of UPX or UCL into such a product.
Markus F.X.J. Oberhumer Laszlo Molnar
markus.oberhumer@jk.uni-linz.ac.at ml1050@cdata.tvnet.hu
Linz, Austria, 25 Feb 2000
Additional License(s)
The UPX license file is at http://upx.sourceforge.net/upx-license.html.
The following software may be included in this product: LZMA Software Development Kit
Use of any of this software is governed by the terms of the license below:
License
LZMA SDK is available under any of the following licenses:
1. GNU Lesser General Public License (GNU LGPL)
2. Common Public License (CPL)
3. Simplified license for unmodified code (read SPECIAL EXCEPTION)
4. Proprietary license