Non-recursive Directory Tree Traversal

ASP: Iterate over Files and Directories in Filesystem Directory Tree SQL Server: Iterate over Files and Directories in Filesystem Directory Tree C#: Iterate over Files and Directories in Filesystem Directory Tree C++: Iterate over Files and Directories in Filesystem Directory Tree MFC: Iterate over Files and Directories in Filesystem Directory Tree C: Iterate over Files and Directories in Filesystem Directory […]

How to use an ActiveX in VB6

There are two ways to reference an ActiveX in Visual Basic 6.0.  The first is to select “Project–>References” from the VB6 menu.  The second way is to select “Project–>Components…” from the VB6 menu. Important:  You should do one or the other, but not both. Which do you choose?   Use “Project–>References” if you are going to instantiate the ActiveX dynamically.  In […]

Converting a PuTTY Private Key (.ppk) to OpenSSH (.pem)

ASP: Convert PuTTY Private Key (ppk) to OpenSSH (pem) SQL Server: Convert PuTTY Private Key (ppk) to OpenSSH (pem) C#: Convert PuTTY Private Key (ppk) to OpenSSH (pem) C++: Convert PuTTY Private Key (ppk) to OpenSSH (pem) MFC: Convert PuTTY Private Key (ppk) to OpenSSH (pem) C: Convert PuTTY Private Key (ppk) to OpenSSH (pem) Delphi: Convert PuTTY Private Key […]

Error: The system cannot find the file specified

If a Chilkat method fails because a file was not found, the LastErrorText will contain information such as this: ChilkatLog: LoadFromFile: DllDate: Sep 1 2009 filename: myCert.cer Failed to open file (2) filename: myCert.cer currentWorkingDirectory: c:\windows\system32\inetsrv osErrorInfo: The system cannot find the file specified. WindowsError: 0x2 Failed. There are two key pieces of information to allow you to know the […]

Is Calling .Dispose() Recommended for C# and VB.NET?

Question: In your examples online, we have noticed that .Dispose() is never called after using Chilkat classes (we are writing in C#). Is calling .Dispose() recommended?  Does your code not need to destroy any native resources or handles that would normally be cleaned up in the Dispose method (the IDisposeable interface) ? Answer: For objects that manage a TCP/IP socket […]

regsvr32 Problems

ActiveX components and controls have been around for many years.  Unfortunately, when regsvr32 fails to register a DLL, the only information provided is an error code.  Usually in the format of a 32-bit hex number, such as 0x80004005 (although not necessarily that particular error code, I simply picked one at random for this blog post). If you search the Internet, […]

su Supported by Chilkat SSH for Linux/Unix Servers?

Question: I don’t see anything in the documentation or examples to indicate that “su” is supported w/ SSH?  Is it possible to login to a user account and then “su” to root? Answer: “su” is a command just like any other Unix/Linux command. It is typed at the command prompt, it does something, and a response is written to standard […]

Possible to use Email in non-HTML Mode Only?

Question: Is it possible to use the email component in non-HTML mode only? For instance, I don’t want to be seeing HTML in the .Body after downloading the message from the server. Answer: Any given email can have a plain-text body, an HTML body, or both. The emailObject.Body property will contain the HTML body if present, or the plain-text body […]

Verify Email Delivery?

Question: Is it possible to check if an email is delivered properly? Answer: The Chilkat MailMan is an SMTP client. It connects to an SMTP server to initiate the delivery of email. Typically you would connect to your company’s or ISP’s SMTP server. If the email is to be sent elsewhere, the SMTP server relays the email to the remote […]