WinRAR is an advanced data compression utility that supports a wide array of format including RAR, ZIP, CAB, ARJ, LZH, ACE, TAR, GZip, UUE, ISO, BZIP2, Z and 7-Zip. It enables you to create, organize and manage archives in a comfortable and quick manner.
The complex compression algorithm it uses creates small archives, saving disk space and enabling faster file sharing. Audio and graphics files benefit from a special archiving algorithm, one that doesn’t make a compromise on quality. It includes Windows Explorer shortcuts for easy access and supports drag and drop as well.
WinRAR also provides possibilities to split archives into several volumes; this way, a large archive is divided into other smaller ones, which makes the perfect way to share huge files.
In case you wish to secure your files, you can always protect your data with a password, while the 'Repair' function comes in handy whenever you try to fix a broken archive.
Besides the fact that it does a great job when it comes to compressing files, WinRAR also integrates dedicated features that allow you to manipulate archives with a single click. You can backup the files you're about to compress, you can test the archived files and you can even perform virus scans before decompressing, without putting the data stored on your computer at risk.
During our tests, the compression and decompression process worked amazingly fast, and that should happen in your case too, at least if your computer is able to handle the task. The only problems you could experience are strictly related to hardware resources, as working with 3 or 4 archives at the same time could be a bit overwhelming for slower computers.
All in all, WinRAR remains the industry-standard in the compression category. It allows you to handle the most popular compression formats using a single interface and at very high speeds provided by the complex engine hidden under the hood.

Limitations:
· The number of files, which can be added to an archive, depends upon the amount of available memory and the length of file names. Roughly 128 bytes of memory are required per archived file for RAR archive. For example, it can take about 128 MB to compress one million of files. WinRAR has been tested to handle over one million of files.
· The size of a RAR archive, as well as the size of any single file within a RAR archive, is limited to 8,589,934,591 GB (9,223,372,036,854,775,807 bytes). Note that to create archives larger than 4 GB, you need to use NTFS, as older file systems do not support such large files.
· The size of a ZIP archive, as well as the size of any single file within a ZIP archive, is limited to 2 GB.
· In general RAR archive format is much better optimized for heavy tasks involving huge number of files and gigabytes of disk space.
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What's New in This Release:
· If archiving operation cannot allocate memory required for compression dictionary, it automatically reduces the dictionary size.
· Decompression algorithm can store the dictionary in several memory blocks. It helps to unpack an archive on systems with high level of memory heap fragmentation, when no single memory block is large enough to fit the entire compression dictionary.