Is Windows 7 compression and WinZip compatible?

To test this one out, I downloaded a copy of WinZip 15.5 and put it in a virtual machine.

First off, I created a few files and placed some data in them.

I then selected all three and sent them to a compressed file.

The resulting compressed file had a 70% compression on it. Not bad.

I then installed WINZIP 15.5.

I selected Legacy Compression during the WinZip installation. This matched the file extension used by Windows.

Using a Drag-Drop operation, I moved the Windows Compressed file into WinZip and it opened.

I then deleted the compressed file and used WinZip to compress the three files. WinZip got me a 73% compression. I then uninstalled WinZip to make sure it had no hand in Windows opening the file that I created with WinZip. Windows was able to open the WinZip file.

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Jason Yoder, MCT

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