Chilkat License — Key

Chilkat License Key — A Focused Monograph

3. Implementation Examples

To use the library, you must call the UnlockBundle method (or specific component unlock method) at the start of your application before using any other Chilkat functionality.

C# (.NET) Example:

Chilkat.Global glob = new Chilkat.Global();
bool success = glob.UnlockBundle("Your-License-Key-Here");
if (success != true) 
    Console.WriteLine("Failed to unlock: " + glob.LastErrorText);
    return;
Console.WriteLine("Unlock successful.");

Python Example:

import sys
import chilkat
glob = chilkat.CkGlobal()
success = glob.UnlockBundle("Your-License-Key-Here")
if (success != True):
print(glob.lastErrorText())
sys.exit() chilkat license key
print("Unlock successful.")

C++ Example:

CkGlobal glob;
bool success = glob.UnlockBundle("Your-License-Key-Here");
if (!success) 
    std::cout << glob.lastErrorText() << "\r\n";
    return;
std::cout << "Unlock successful." << "\r\n";

1. C# (.NET Framework / .NET Core / .NET 5+)

using Chilkat;
// Initialize any Chilkat object (e.g., Http, MailMan, Ssh)
Chilkat.Global glob = new Chilkat.Global();
bool success = glob.UnlockBundle("CHILKAT-LICENSE-XXXXX-YYYYY-ZZZZZ");
if (!success)
Console.WriteLine("License unlock failed: " + glob.LastErrorText);
return;
Console.WriteLine("License successfully unlocked.");

2. Background

Chilkat is a commercial software library providing cross-platform functionality for: Chilkat License Key — A Focused Monograph 3

Email (POP3, IMAP, SMTP)
HTTP, REST, and SOAP
FTP/SFTP
Compression, Encryption, and MIME

Chilkat operates on a per-developer or per-server licensing model. A single license key is required for each deployed application instance (server) or for each developer compiling the library into an application.

4. Implementation Details (How to use it)

The license key is applied programmatically. You do not need to configure registry keys or external files.

The UnlockComponent Method: Every Chilkat object (such as Chilkat.Http, Chilkat.Ftp2, etc.) typically has an UnlockComponent method (or similar, depending on the language).
- Best Practice: You only need to call UnlockComponent once when your application starts. Calling it repeatedly has no negative effect but is unnecessary.
- Syntax Example (C#):
```
Chilkat.Global glob = new Chilkat.Global();
bool success = glob.UnlockBundle("Your-License-Key-Here");
if (success != true) 
    Console.WriteLine("Failed to unlock: " + glob.LastErrorText);
    return;
```
The "Last Error Text": If the license key is invalid, expired (for new versions), or malformed, the LastErrorText property will provide a detailed reason why the unlock failed.

3. "License key has expired" (for maintenance plans)

Cause: Chilkat licenses come with 1 year of free updates. After one year, your key still works with the version you downloaded during the maintenance period, but it will not unlock newer versions. Python Example: import sys import chilkat glob =

Fix: Either:

Use the exact binary version from your active maintenance period.
Renew your maintenance plan to get a new key for the latest version.

3. Product vs. Bundle Keys

The features unlocked depend on the specific key purchased.

Single-Product Key: A license key for a specific module (e.g., "Chilkat Zip" or "Chilkat XML") only unlocks methods within that specific class hierarchy.
Bundle Key: A "Chilkat Bundle" license key unlocks every single Chilkat class/library (Crypt2, Http, Ftp2, Ssh, Sftp, Email, Imap, etc.) for a specific programming language/platform (e.g., C++, .NET, Python, Java).
Platform Specificity: A license key for .NET Core does not automatically work for the Java or Python libraries. They are generally sold per-platform unless a multi-platform bundle is negotiated.