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Why the session is lost during uploading?
Symptoms: You may find the session is lost when you try to upload files to your web server using Dynamic Web TWAIN. Cause: 1. You are using an old version of Dynamic Web TWAIN that does not support session. 2. You are using an authentication mode that the Dynamic Web TWAIN version you are usin ...- Error message: The connection with the server was terminated abnormally
Symptoms: When you upload images in buffer, you may receive the following error message returned by the ErrorString property: Cause: 1. The problem may occur when a connection with the server is not available. 2. The size of images you are going to upload goes beyond the maximum transferable d ...
- Dynamic Web TWAIN Mac Edition doesn’t work when multiple plug-ins are in the scan page or multiple tabs of the scan page open in browser.
Symptoms: When you have multiple Dynamic Web TWAIN Mac Plug-ins in the scan page, only 1 plug-in works. The others don’t work. When you open the scan page in multiple tabs, only the plug-in in the first tab works. Cause: The Data Source Manager is occupied by the first plug-in. Resolutio ...
- Error message: HTTP process error
Symptom: When you upload images using the HTTPUploadThroughPost*** method, you may receive the following error messages: Cause: 1. The write permission is not granted to the specified directory on the web server. 2. The action page is incorrect or returns something from Web server. 3. The Port ...
- Error message: The handle is in the wrong state for the requested operation
Symptom: When you upload images, you may receive the following error messages returned by the ErrorString property: Cause: 1. The size of images you are going to upload goes beyond the maximum transferable data size which is defined by the server. 2. The port number of the HTTP server is not ...
- Error Message: Unable to get the window handle for the 'AxDynamicTwain' control
Symptoms: When you compile a Dynamic Web TWAIN application in Visual Studio 2005/2008 on a Vista machine, you may receive the following error message: Cause: The program is closed by DEP (Data Execution Prevention). Resolution: The following resolutions can be applied to avoid this issue: Res ...
- Error message: Your Dynamic Web TWAIN serial number is invalid
Symptom: When you generate the LPK file or run a TWAIN application, you may receive the following error message: Cause: The problem may occur when the license is invalid. Resolution: This problem may occur in the following conditions: The error occurs when generating a LPK file. The error ...
- Error message: <Project Name> has stopped working
Symptom: When running a TWAIN EXE file in Windows Vista/7, you may get the following error message: Cause: The EXE file is blocked by the DEP (Data Execution Prevention) protection. DEP is a security feature in Microsoft Windows OS. Resolution: Please turn off DEP for the EXE file. For informat ...
- Error: The instruction at "0x9320068" referenced memory at "0x09320068". The memory could not be "written".
Symptoms: When you access the page containing Dynamic Web TWAIN control with IE, you might encounter this error message: Cause: The DEP of Windows or an malicious add-on of IE. Resolution: Please try the following steps: 1. Disable DEP for Internet Explorer. To do this, please go to IE -& ...
- Error message: The License Number is for trial version. Please use a full version License Number.
Symptoms: When you generate the LPK file using lpk_tool.exe or try running the TWAIN application, you may receive the following error message: Cause: The behavior occurs when you use a trial license for the full version of Dynamic Web TWAIN. Resolutions: The problem may occur in the following ...
- Error message: The resource cannot be found
Symptom: When you upload the image by the HTTP Post method, you may receive the following error message returned by the HTTPPostResponseString property: Cause: The problem may occur when the action page does not exist. To get more information about the action page, please refer to Related Arti ...
- Error message: HTTP request error
Symtoms: When you upload the image using the HTTP Put method, you may receive the following error message returned by the ErrorString property: Cause: 1. The problem may occur if the write permission is not provided on the server. 2. In Tomcat, the value of readonly property is false by defa ...
- Error message: Unable to create temporary Storage
Symptom: When creating a LPK file using Lpk_tool.exe in Windows Vista, you may get the following error message: Cause: You don't have the permission to create a LPK file. Resolution: To create a LPK file in Windows Vista, please right click Lpk_tool.exe and run the EXE file as administrator.
- Error message: Windows has blocked this software because it can't verify the publisher.
Symptom: When you access the web page from the client side, you may receive the following error message: Cause: The problem may occur when the CAB file is corrupt. Resolution: 1. Please copy the CAB file from the installation directory of Dynamic Web TWAIN and replace the CAB file on your ser ...
- Error message: Error reading installation information
Symptom: When you are installing Dynamic Web TWAIN, you may get the following error message: Cause: You may have installed Dynamic Web TWAIN before and the former installation information has not been removed completely. Resolution: 1. Delete ds_twidr_f.dll at "C:\Windows\System32". 2. Delete ...
- Error message: Error reading setup initialization file
Symptom: When you install Dynamic Web TWAIN, you may receive the following error message: Cause: The installation package is corrupt. Resolution: Please download the installation package again and reinstall Dynamic Web TWAIN. Reference: To download the trial version of Dynamic Web TWAIN (DWT), ...
- Error message: Unspecified error
Symptom: When you acquire images, you may receive the following error message: Cause: The error message may be returned by IE when you set the value of the IfThrowException property to true. Resolution: Please set the value of IfThrowException to false. For more information about this property, ...
- Error message: Only 24-bit true color bmp and 8-bit gray-scaled image are supported for JPEG compression
Symptom: When you save or upload a image in buffer as a JPEG file, you may receive the following error message: Cause: You are saving a Black&White image as a JPEG file. JPEG standard defines that only 256 gray-scaled image and 24 bit RGB image can be compressed as JPEG format. Resolution: Ple ...
- Error message: Invalid index
Symptom: When you edit, save or upload images, you may receive the following error message returned by the ErrorString property: Cause: The error may occur if you perform these operations without any image in buffer. Resolution: To avoid this problem, please make sure there are images in buff ...
- Error message: An error occurred in the secure channel support
Symptom: When you upload the image using SSL, you may receive the following error message: Cause: The problem may occur when any of the following items exist: 1. SSL is not working. 2. The code is not written properly. Resolution: 1. Please make sure that SSL is working fine. You can open the ...