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Here are examples for creating the HTTP Authorization header for Amazon S3 requests: ASP: HMAC SHA1 for Amazon S3 SQL Server: HMAC SHA1 for Amazon S3 C#: HMAC SHA1 for Amazon S3 Delphi: HMAC SHA1 for Amazon S3 Visual FoxPro: HMAC SHA1 for Amazon S3 Java: HMAC SHA1 for Amazon S3 Perl: HMAC SHA1 for Amazon S3 PHP: HMAC SHA1 […]
Question: I am using your email ActiveX control and wanted to know if there is a way to update MS Outlook in the sent folder with the email I am sending with your control? Answer: Email clients communicate with email servers using a well-known protocol. Email clients do not generally communicate with other email clients. Here is a non-exhaustive list […]
The Chilkat Upload ActiveX component (which is entirely freeware) provides the capability to receive both form text items as well as file uploads in a single HTTP POST. This post provides an example. First we show the HTML FORM with both text and file input fields. Then we show the ASP script to receive the POST. More information about the […]
If you open a DOS prompt and telnet to an SMTP server (typically port 25 for non-SSL, port 465 for SSL), you should get a human-readable printable-text “HELLO” message from the non-SSL port, but binary SSL-handshake protocol gobbly-gook from an implicit SSL port. For example: > telnet mail.chilkatsoft.com 25 220 mail.chilkatsoft.com ESMTP MailEnable Service, Version: 0-1.85- ready at 05/30/08 08:04:19 […]
Question: We are making a timed call to an FTP folder to check for new files. Once a file appears, we download it. Is it possible to keep the session open between these timed calls, or should it be closed and re-opened every time we check? The interval is very small 2 seconds, but may run for days at a […]
Question: I was wondering if the IMAP library for .NET allows me to go into an IMAP server, and change the body of a previous email? Is any email fair game? Or does it have to be in drafts? If so, is there a special way to save it to the server? If this does not work, can I delete […]
This post provides ASP.NET code (C#) to display an HTML email using the Chilkat .NET Email component. It will provide a live example, as well as a download link to the sample code and data files. This example is only concerned with displaying the HTML body of the email, including embedded images. Displaying the text header fields (Subject, From, To, […]
When linking with a Chilkat C++ library, you must choose the .lib that matches your project’s “code generation” property setting. For example, in VC++ 8.0, these are the Chilkat .lib’s: ChilkatDbg.lib ChilkatDbgDll.lib ChilkatRel.lib ChilkatRelDll.lib If “Dll” is in the library name, it means that you are *not* statically linking with the C runtime libs. Just because your project produces a […]
This new ASP Upload example demonstrates how to use the Chilkat ASP Upload component to receive uploads in ASP and save the received files to the Web server’s filesystem.
This post provides C# sample code for matching a test vector (known answer test). 3DES Settings: ECB Mode 192-bit key (i.e. 3 8-bit keys) ASCII Key Bytes: 1234567890123456ABCDEFGH ASCII Text to Encrypt: The quick brown fox jumped over the lazy dog Pads with zero bytes Hexadecimalized Encrypted Result: 13d4d3549493d2870f93c3e0812a06de467e1f9c0bfb16c0 70ede5cabbd3ca62f217a7ae8d47f2c7bf62eb309323b58b C# Code: string keyAscii = “1234567890123456ABCDEFGH”; byte[] key = ASCIIEncoding.ASCII.GetBytes(keyAscii); […]