1. Uninstall the old version before installing the new one.

2. To get the lastest version, you can write to our sales at sales@dynamsoft.com for the download link.

3. Install Dynamic Web TWAIN 5.x. You need to delete the Trial license in "Licensing Tool" and then add the Full license you purchased. Licensing Tool can be found at "start -> All Programs -> Dynamic Web TWAIN 5.1.1 -> Licensing Tool".

4. The upgrades of Dynamic Web TWAIN for web applications and desktop applications are different.

1) If you are developing a web application with Dynamic Web TWAIN, please follow the steps below:

• Replace the old CAB files with the new ones. The CAB file can be found at the installation directory of Dynamic Web TWAIN 5.1.1.
  
• Change the old version number to the new one, which will make an automatic upgrade of Dynamic Web TWAIN on the client side. Please click here for more information about how to upgrade Dynamic Web TWAIN on the client side when the upgrade is done on the server side.
  
  <object classid="clsid:E7DA7F8D-27AB-4EE9-8FC0-3FEC9ECFE758" id="DynamicWebTwain1" width="143" height="156"
  CodeBase = "DynamicWebTWAIN.cab#version=5,1">
  
  To:
  
  <object classid="clsid:E7DA7F8D-27AB-4EE9-8FC0-3FEC9ECFE758" id="DynamicWebTwain1" width="143" height="156"
  CodeBase = "DynamicWebTWAIN.cab#version=5,1,1">
  
  Click here for more information on how to deploying Dynamic Web TWAIN on Web Server.

2) If you are developing a desktop application with Dynamic Web TWAIN, you need to remove the control of the old version from the forms and re-add the control of the 5.1.1 version.

Click here to get more information on how to use Dynamic Web TWAIN in different development environments


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Upgrade from DWT 4.x to the latest version of DWT:

1. Uninstall the old version before installing the new one.

2. As the license of the 5.x version is incompatible with the 4.x version, you need new licenses. Please click here to purchase the upgrade. (Customers who purchased Dynamic Web TWAIN 4.2.1 version from 6/18/2007 to 10/19/2007 are eligible for free upgrade. Please write to our sales at sales@dynamsoft.com for the free upgrade.)

3. Install Dynamic Web TWAIN 5.x. You need to delete the Trial license in "Licensing Tool" and then add the Full license you purchased. Licensing Tool can be found at "Start -> All Programs -> Dynamic Web TWAIN 5.1 -> Licensing Tool".

4. The upgrades of Dynamic Web TWAIN for web applications and desktop applications are different.

1) If you are developing a web application with Dynamic Web TWAIN, please follow the steps below:

• Replace the old CAB/LPK files with the new ones. The CAB file can be found at the installation directory of Dynamic Web TWAIN 5.1 and the LPK file can be created by using Lpk_tool.exe that can be downloaded from www.microsoft.com.
  
• Change the old version number to the new one, which will make an automatic upgrade of Dynamic Web TWAIN on the client side. Please click here for more information about how to upgrade Dynamic Web TWAIN on the client side when the upgrade is done on the server side.
  
  <object classid="clsid:E7DA7F8D-27AB-4EE9-8FC0-3FEC9ECFE758" id="DynamicWebTwain1" width="143" height="156"
  CodeBase = "DynamicWebTWAIN.cab#version=4,2,1">
  
  To:
  
  <object classid="clsid:E7DA7F8D-27AB-4EE9-8FC0-3FEC9ECFE758" id="DynamicWebTwain1" width="143" height="156"
  CodeBase = "DynamicWebTWAIN.cab#version=5,1,1">
  
  Click here for more information on how to deploying Dynamic Web TWAIN on Web Server.

2) If you are developing a desktop application with Dynamic Web TWAIN, you need to remove the control of the old version from the forms and re-add the control of the 5.1.1 version.

Click here to get more information on how to use Dynamic Web TWAIN in different development environments.


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Upgrade from the trial version to the full version of Dynamic Web TWAIN

Upgrade from DWT 5.x trial to the latest version of DWT

1. Uninstall the old version before installing the new one.

2. Install Dynamic Web TWAIN 5.x.

3. The upgrades of Dynamic Web TWAIN for web applications and desktop applications are different.

1) If you are developing a web application with Dynamic Web TWAIN, please follow the steps below:

• Replace the old CAB/LPK files with the new ones. The CAB file can be found at the installation directory of Dynamic Web TWAIN 5.1 and the LPK file can be created by using Lpk_tool.exe that can be downloaded from www.microsoft.com.
  
• Change the old version number to the new one, which will make an automatic upgrade of Dynamic Web TWAIN on the client side. Please click here for more information about how to upgrade Dynamic Web TWAIN on the client side when the upgrade is done on the server side.
  
  <object classid="clsid:FFC6F181-A5CF-4ec4-A441-093D7134FBF2" id="DynamicWebTwain1" width="143" height="156"
  CodeBase = "DynamicWebTWAIN.cab#version=5,1">
  
  To:
  
  <object classid="clsid:E7DA7F8D-27AB-4EE9-8FC0-3FEC9ECFE758" id="DynamicWebTwain1" width="143" height="156"
  CodeBase = "DynamicWebTWAIN.cab#version=5,1,1">

2) If you are developing a desktop application with Dynamic Web TWAIN, you need to remove the control of the old version from the forms and re-add the control of the 5.1.1 version. Click here to get more information on how to use Dynamic Web TWAIN in different development environments.


---------------------------------------------------------------------------------


Upgrade from DWT 4.x trial to the latest version of DWT

1. Uninstall the old version before installing the new one.

2. Install Dynamic Web TWAIN 5.x.

3. The upgrades of Dynamic Web TWAIN for web applications and desktop applications are different.

1) If you are developing a web application with Dynamic Web TWAIN, please follow the steps below:

• Replace the old CAB/LPK files with the new ones. The CAB file can be found at the installation directory of Dynamic Web TWAIN 5.1 and the LPK file can be created by using Lpk_tool.exe that can be downloaded from www.microsoft.com.
  
• Change the old version number to the new one, which will make an automatic upgrade of Dynamic Web TWAIN on the client side. Please click here for more information about how to upgrade Dynamic Web TWAIN on the client side when the upgrade is done on the server side.
  
  <object classid="clsid:FFC6F181-A5CF-4ec4-A441-093D7134FBF2" id="DynamicWebTwain1" width="143" height="156"
  CodeBase = "DynamicWebTWAIN.cab#version=4,2,1">
  
  To:
  
  <object classid="clsid:E7DA7F8D-27AB-4EE9-8FC0-3FEC9ECFE758" id="DynamicWebTwain1" width="143" height="156"
  CodeBase = "DynamicWebTWAIN.cab#version=5,1,1">

2) If you are developing a desktop application with Dynamic Web TWAIN, you need to remove the control of the old version from the forms and re-add the control of the 5.1.1 version. Click here to get more information on how to use Dynamic Web TWAIN in different development environments.