FTP Unicode Directory Listings

Question: Files on the FTP server contain Unicode characters (Chinese, Japanese, Russian, etc.). How do I get the correct filenames in my (Chilkat FTP2) client? Answer: It is very dependent on the capabilities of the FTP server. Many servers are incapable of sending Unicode directory listings. If an FTP server supports Unicode directory listings, it will use utf-8 (which is […]

Is SMTPQ an SMTP Server?

The SMTPQ service is not an SMTP server. It’s a service that watches a directory for special .eml files. When a .eml file appears, it reads it, extracts and removes information from the header and sends the email by connecting to an SMTP server. The information extracted from the .eml includes the SMTP hostname, login, password, and other sending-params. The […]

scRet: 80090305

If you find an 8-digit hexidecimal error code in your LastErrorText, the best way to understand what it may mean is to Google the error number. In this example, search for “80090305”. You may also send the contents of the LastErrorText to support@chilkatsoft.com. PS> If displaying LastErrorText in an ASP or ASP.NET web page, be sure to HTML encode the […]

Using Assembly in ASP.NET – Simplest Example

This example demonstrates the simplest method for using a .NET assembly in an ASP.NET web page. 1) Create a new file “helloWorld.aspx” in your web site’s root directory. Using a text editor, add this: <%@ Page Language=”C#” %> <%@ Import Namespace=”Chilkat” %> <html> <head> <title>ASP.NET Hello World</title> </head> <body bgcolor=”#FFFFFF”> <p> <% Chilkat.Ftp2 ftp = new Chilkat.Ftp2(); Response.Write(ftp.Version); %> </p> […]

C# Blowfish Test Vectors

C# to match the Blowfish test vectors at this URL: http://www.schneier.com/code/vectors.txt // keys string[] key = new string[] { “0000000000000000”, “FFFFFFFFFFFFFFFF”, “3000000000000000”, “1111111111111111”, “0123456789ABCDEF”, “1111111111111111”, “0000000000000000”, “FEDCBA9876543210”, “7CA110454A1A6E57”, “0131D9619DC1376E”, “07A1133E4A0B2686”, “3849674C2602319E”, “04B915BA43FEB5B6”, “0113B970FD34F2CE”, “0170F175468FB5E6”, “43297FAD38E373FE”, “07A7137045DA2A16”, “04689104C2FD3B2F”, “37D06BB516CB7546”, “1F08260D1AC2465E”, “584023641ABA6176”, “025816164629B007”, “49793EBC79B3258F”, “4FB05E1515AB73A7”, “49E95D6D4CA229BF”, “018310DC409B26D6”, “1C587F1C13924FEF”, “0101010101010101”, “1F1F1F1F0E0E0E0E”, “E0FEE0FEF1FEF1FE”, “0000000000000000”, “FFFFFFFFFFFFFFFF”, “0123456789ABCDEF”, “FEDCBA9876543210” }; string[] plainText = new string[] { […]

osErrorInfo: Access is denied.

If you find the error “osErrorInfo: Access is denied.” in LastErrorText, it means that the file could not be opened because of file permissions problems. The “Access is denied” message originates from the Windows operating system. Check the file and directory permissions to make sure the calling process has permission to open the file for read and/or write access. Check […]

Service Extension for Delivery Status Notifications (DSNs)

Chilkat’s email component supports the SMTP DSN extensions (RFC 3461). The MailMan object includes these properties specific to RFC 3461: DsnEnvid: (An SMTP DSN service extension feature) An arbitrary string that will be used as the ENVID property when sending email. See RFC 3461 for more details. DsnNotify: (An SMTP DSN service extension feature) A string that will be used […]

Matching DES Encryption in Java and VBScript

This page shows both Java JCE DES encryption examples, as well as examples using the Chilkat Encryption component in both Java and VBScript. Each of these examples produces identical output: The string: ABC123 encrypts to 6DA02B6AE1EA32D8 (as a hexidecimalized string) Java bytes-to-hex Encoding Utility Function public static String toHex (byte buf[]) { StringBuffer strbuf = new StringBuffer(buf.length * 2); int […]

Quoted-Printable Encoding Definition

Quoted-printable, or QP encoding, is an encoding using printable characters (i.e. alphanumeric and the equals sign “=”) to transmit 8-bit data over a 7-bit data path. It is defined as a MIME content transfer encoding for use in Internet e-mail. The basic Internet e-mail transmission protocol, SMTP, supports only ASCII characters (see also 8BITMIME). MIME defines mechanisms for sending other […]

HTTP ActiveX to Automatically Detect Settings

Question: How can I use your HTTP ActiveX library in VB to download a file with my connection settings “automatically detect settings” instead of proxy settings? Answer: Set the HTTP object’s UseIeProxy property = 1. This will cause the proxy host/port used by Internet Explorer (if set) to be used by the Chilkat HTTP component.