How to decrypt a lost zip password

Follow this steps.
1.PeaZip is a freeware cross-platform archive
manager that provides a single GUI for Open
Source technologies ( 7-Zip , FreeArc, PAQ,
UPX. ..) on Windows, Linux, and BSD. The file
manager allows both to select files and
folders to be archived as Zip files (or other
formats), and to select archives to be
unzipped. Alternatively, file selection can be
performed with PeaZip system's context
menu entries (not featured in PeaZip Portable
version) or simply dragging and dropping files
from / to the program.
2.Archive creation can be started dragging files
on the application, or with "Add" button in
program's tool bar. The archive creation
interface prompts by default creation of a Zip
file, but the file format can be customized, as
well as compression ratio (from faster to
better) and other miscellaneous options,
including encryption. PeaZip relies on
optimized Deflate algorithm for compressing
in Zip format, that usually compress 5-10%
better than standard Deflate but keeping
compatibility with other Zip utilities. 7Z
format gives better compression ratio, but is
slower than Zip. As quite unique feature for
archive management software, PeaZip
supports two factor authentication (password
plus key file), random password generation,
and features an integrated encrypted
password manager. "Advanced" tab features
more fine-grained options, "Console" tab
transform the task in a command line i.e. for
use in scripts or for study purpose,
"Schedule" tab allows to transform the
interactive task in a scheduled one.
3.Archive extraction can be started from system
context menu, or dragging compressed files
on the application, or with "Extract" button in
program's tool bar. It can handle multiple
archives even of mixed types at once, or
selective extraction of content from a single
archive. Over 170 types of archives are
supported: classic ZIP files and its variants,
new WinZip's ZIPX file format, RAR files, old
ACE archives, Microsoft's CAB and WIM files,
Apple's DMG packages, ISO and UDF disk
images, and many more.

Which email acc.????...
Windows Live Hotmail allows users to view attachments within a Web browser or save them to the system's hard drive.
If Hotmail can't open an attachment, the problem lies with an incompatible file format or Hotmail's automatic blocking service.
You may need new software for opening unfamiliar formats, while blocked files are permanently inaccessible from within Hotmail.
Accessing these files requires action by the sender or forwarding the file to a different email client. Incompatible File Format
Occasionally a sender may attach a file that simply doesn't work with any software you have installed on the system.
Attempting to open the attachment will result in a "Windows cannot open this file" message or similar error display.
Many programs use very specific file formats that don't operate with most other software, such as Photoshop's PSD image files or Microsoft PowerPoint's PPT files.
Ask the sender to convert the file to a more widely compatible format, or install the appropriate software on the system to open the attachment.

Blocked Attachments
Hotmail blocks attachments it believes may contain unsafe or otherwise malicious code.
This includes any and all executable file types, including MSI, EXE, HTML, STC and COM files, along with many others.
Attachments blocked in this way result in a "Windows Live Hotmail has blocked some attachments" message when viewing the email.
While this service does block many real threats to system security, Hotmail may occasionally deny access to an item from a trusted sender.
Unfortunately, these files become permanently inaccessible once blocked by Hotmail, and accessing them requires using a workaround outside the Hotmail application.
Only attempt to access attachments you trust as safe.


Forward Workaround While Hotmail cannot open blocked attachments, it allows users to forward the message with the blocked file still attached.
Send the file to a different email client, and open the attachment using that account instead. Note other clients may have different security measures, but some will still block access to executable files and other potentially harmful data.

Compression Workaround

Ask the sender to package the attachment into a ZIP, RAR or other compressed file format before attaching.
Hotmail will not block any file type located inside a compressed archive.
Both Windows and OS X can create compressed ZIP files, and free utilities such as Zipeg and 7-Zip can create many other types of archives as well.
Some email clients, such as Gmail, will not allow users to send some file formats, even when packaged into an archive file.


http://windows.microsoft.com/en-US/windows7/Compress-and-uncompress-files-zip-files


http://ask-leo.com/windows_live_hotmail_has_blocked_some_attachments_how_do_i_get_around_that.html

Windows Live Hotmail allows users to view attachments within a Web browser or save them to the system's hard drive.

If Hotmail can't open an attachment, the problem lies with an incompatible file format or Hotmail's automatic blocking service.

You may need new software installed on your computer IE: adobe . direct x , zip for opening unfamiliar formats, while blocked files are permanently inaccessible from within Hotmail.

Accessing these files requires action by the sender or forwarding the file to a different email client.

Incompatible File Format

Occasionally a sender may attach a file that simply doesn't work with any software you have installed on the system.

Attempting to open the attachment will result in a "Windows cannot open this file" message or similar error display.

Many programs use very specific file formats that don't operate with most other software, such as Photoshop's PSD image files or Microsoft PowerPoint's PPT files.

Ask the sender to convert the file to a more widely compatible format, or install the appropriate software on the system to open the attachment.

Blocked Attachments

Hotmail blocks attachments it believes may contain unsafe or otherwise malicious code.

This includes any and all executable file types, including MSI, EXE, HTML, STC and COM files, along with many others.

Attachments blocked in this way result in a "Windows Live Hotmail has blocked some attachments" message when viewing the email.

While this service does block many real threats to system security, Hotmail may occasionally deny access to an item from a trusted sender.

Unfortunately, these files become permanently inaccessible once blocked by Hotmail, and accessing them requires using a workaround outside the Hotmail application.

Only attempt to access attachments you trust as safe.

Forward Workaround

While Hotmail cannot open blocked attachments, it allows users to forward the message with the blocked file still attached.

Send the file to a different email client, and open the attachment using that account instead.

Note other clients may have different security measures, but some will still block access to executable files and other potentially harmful data.

Compression Workaround

Ask the sender to package the attachment into a ZIP, RAR or other compressed file format before attaching.

Hotmail will not block any file type located inside a compressed archive.

Both Windows and OS X can create compressed ZIP files, and free utilities such as Zipeg and 7-Zip can create many other types of archives as well.

Some email clients, such as Gmail, will not allow users to send some file formats, even when packaged into an archive file.

Hope this helps

Hi, The ZIP file format is a data compression and archive format. A ZIP file contains one or more files that have been compressed, to reduce file size, or stored as is. It help you transfer files easier. And it is more convenient because the files size is reduced, you can transfer multiple files at once.
Thank you for using Fixya. Your recommendation is highly appreciated for the free support

try 7Zip from softpedia.com