Creating self updating applications with the net compact framework

It's not the magic of Java Version 6 Update 31 (build 1.6.0_31-b05) but it's a start. NET and Microsoft Product Versioning that got the attention of some folks. Rick Strahl said on his blog: Note that this in-place replacement is very different from the side by side installs of . Write Line("Extracting file to ", Zip To Unpack, Target Dir) Using zip1 As Zip File = Zip File. Extract Progress, Address Of My Extract Progress Dim e As Zip Entry ' here, we extract every entry, but we could extract ' based on entry name, size, date, etc. The release includes the library, as well as some sample applications (with source) showing how to use the library. Some people are willing to give up commercial support for a lower price. Some of those other packages are complex to use for zip files. If I create a zipfile with a java/PHP/Python/C/Perl application, or with Win Rar/Win Zip/7zip, can I open it from within a . Also, Dot Net Zip's AES will work with any other tool that is compatible with Win Zip. Why would a developer not just use the ZIP capability that is built into the Windows Shell? The programming model for managed code apps is much nicer with Dot Net Zip, and Dot Net Zip is faster. Can Win RAR read the zip files produced by Dot Net Zip? But remember, Dot Net Zip does not produce RAR files. The error is: "This program cannot display the webpage." or, "The address is invalid." Is there an error with the chm file? You have likely encountered a problem with Windows protection of files downloaded from less trusted locations. Yes, you can zip up files and Save the zip archive to a stream. All the zip file content can be manipulated in memory (using Memory Stream for example).This is a look at the Win Forms sample app that creates and zip files. Some of them don't have enough features (Eg, AES encryption, ZIP64, zip spanning). What I found is that most people want something simple and easy to use, that works well, has good features, compresses effectively and fast, and is the right price. NB: If you open an AES-encrypted ZIP file in Windows Explorer, whether generated by Dot Net Zip or some other tool, you will be able to view the list of files, but you won't be able to extract entries. The advanced features, for things like selecting entries from the zip file, or AES-encryption, or self-extracting archives, are not available using the shell library. To view the chm file, within Windows Explorer, right-click on the CHM file, select properties, and Unblock it (button in lower part of properties window). As well you can Read a zip archive from an open stream - I use this for embedded resources in apps: I call Get Manifest Resource Stream(), and then unzip that resource. Unlike some other libraries, in most cases Dot Net Zip handles the streaming; your application does not need to implement a Read/Write data pump. Using the stream support, you could, for example, open a zip archive, and then modify the files in the archive, and Save out to a Response. Does this library allow removal of entries from zip files, or updating of entries in zip files? Do I have to write programs to take advantage of this thing? Dot Net Zip supports these scenarios: - a Silverlight app that dynamically creates zip files. NET app that dynamically creates ZIP files and allows a browser to download them - a Windows Service that periodically zips up a directory for backup and archival purposes - a WPF program that modifies existing archives - renaming entries, removing entries from an archive, or adding new entries to an archive - a Windows Forms app that creates AES-encrypted zip archives for privacy of archived content. It's fast, fully DEFLATE compliant, and it compresses better than the built in version!Dim Zip To Unpack As String = "" Dim Target Dir As String = "C1P3SML" Console. Overwrite Silently) Next End Using Dot Net Zip is a 100% managed code library that can be used in any . Click this link for information on Getting Started with Dot Net Zip in Visual Studio. The self-extracting archives can either be Windows (GUI) apps or command-line applications. If you don't know what these features are, you probably don't need them and you won't run into interop problems. If you create an AES-encrypted ZIP file with Dot Net Zip, you will be able to view it and extract it in Win Zip, and vice versa. Dot Net Zip provides nice features like progress events and file selectors; the Packaging API does not. All the public interfaces are thoroughly documented. You can view the CHM online I cannot view the CHM documentation.Dot Net Zip is a FAST, FREE class library and toolset for manipulating zip files. NET language to easily create, extract, or update zip files. If all you want is a better Deflate Stream or GZip Stream class to replace the one that is built-into the . Dot Net Zip's Deflate Stream and GZip Stream are available in a standalone assembly, based on a . These streams support compression levels and deliver much better performance than the built-in classes. It can also be used from scripting environments or COM-capable environments like Powershell scripts, VBScript, VBA, VB6, PHP, Perl, Javascript, and more. Are the zip files this library makes compatible with the zip classes in the Java class library? This is a shortcoming in the Java library, not in Dot Net Zip. This library makes standard zip files, so anything that can read and write zip files, on any platform, can work with zipfiles generated from this library. For example, currently the Java library does not do ZIP64, and the zipfile module in Python does not support zipfile comments, while Dot Net Zip can create and read zip archives using those features. There is sample code in the help file, and in the source distribution, covering all these. If you use extensions to the ZIP spec not supported by Windows, like ZIP64 or spanning or AES encryption, Windows Explorer will not be able to extract the files. You may have to follow a format convention for the zip file. Is there a version of the library built to work with Silverlight applications? New for v1.9.1.6, in July 2011, Dot Net Zip is built for Silverlight. The ZIP64 extensions raise those restrictions, at the expense of compatibility and interoperability. Dot Net Zip's AES encryption is compatible with the Win Zip AES-encryption extension to the PKWare ZIP specification. This library is generally simpler and faster for creating or reading plain, generic zipfiles.

- a SSIS script that unzips or zips - An administrative script in Power Shell or VBScript that performs backup and archival. And, the Deflate Stream that is included in Dot Net Zip is available for any application to use, under the same terms as the rest of the Dot Net Zip library.I do think that things are getting better and becoming less confusing. NET 4.5 is a step in the right direction of transparency in versioning. NET 3.5 both upgraded the system (and CLR) in place as well. NET 4.5 that makes creating libraries for any CLR (including Xbox, Phone, Mono and others). NET 4.5 on your machine that you can't safely develop for . I was most concerned about some "platform updates" to . Meetings were had and those small updates now have simpler names versions like NET 4.0.1, etc. In-place upgrade means that the CLR is the same but new libraries are added as well as bug fixes and performance improvements: There's been some concern about how . NET 2.0 and 3.0/3.5 which all ran on the 2.0 version of the CLR. NET 2.0 runtime which wasn’t changed (other than for security patches and bug fixes) for the whole 3.x cycle. NET 4.0 runtime and leaves the actual version number set at v4.0.30319. I'm not going to tell you it's not confusing today. There are "side by side installs" and there are "in place upgrades." A major version means side-by-side and a minor version means in-place. The two 3.x versions were basically library enhancements on top of the core . Rick has a great post with a lot of detail and information.

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