PECompact2 3.03.12 beta
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Date updated
February 7, 2011
Developer
All time downloads
1,620
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Platform
Windows
Size
0.91 MB
Description of PECompact2 3.03.12 beta
Super compressor for EXE files
Executable compressors work by compressing selected portions of executables. At runtime, compressed executables are decompressed and reconstructed directly into their virtual image (memory) so that no data is ever written to the disk. The executable can therefore be run exactly as it was before without the user even knowing it was compressed. PECompact2 is a next generation win32 executable/module compressor. Commonly termed an 'executable packer', such utilities compress executables and modules (i.e. *.EXE, *.DLL, *.OCX, *.SCR). At runtime the compressed modules are rapidly decompressed in memory.
There are many reasons. One of the most common is that compression offers an inherent degree of tamper resistance and obfuscation. Another is that since the usual compression ratio is greater than 70% (that is, the compressed file is 30% of the original), larger executables and modules may load much quicker from the network or disk hosting them. Since storage medium is often the largest bottleneck in overall system performance, the time spent decompressing can be much less than the time saved by not having to load as much data from the storage medium.
PECompact2 is a utility of the genre known as "executable packers". Executable packers compress executables and modules so that their physical size is considerably smaller than it originally was. At runtime, the module (executable) is decompressed and reconstructed in memory. With high-performance executable packers such as PECompact v2.x, decompression and reconstruction is so rapid that load time may actually improve since the time saved by reading fewer bytes from the disk or network may exceed the time spent reconstructing and decompressing the module.
Typically, PECompact2 compresses modules substantially better than that of the common compression software such as RAR and ZIP. This is accomplished through advanced techniques of pre-processing a module to make it more compressible when passed to the compression algorithm. PECompact2 allows use of virtually any compression algorithm due to its CODEC plug-in support.
In addition to space savings, PECompact2 inherently makes it more difficult to reverse engineer your module(s). The compressed data is unreadable and not directly modifiable. PECompact2's default loader employs some basic anti-debugging code to aid in prevention of reverse engineering. In addition, PECompact2 supports Loader plug-ins. Therefore, third parties can create custom loaders after purchasing the loader SDK.
What is new in version 3.03.12 beta
Complete rewrite.
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