Web Scraping from Cloud – WebHarvy on Amazon EC2

WebHarvy requires Windows operating system to run. So in case you do not have access to a Windows PC or if you do not want to run WebHarvy on your local PC, you have the option to run WebHarvy from Cloud. Amazon Web Services (AWS) Elastic Compute Cloud (EC2) platform makes this possible. See the following link.


Amazon EC2 lets you run a remote Windows instance in Cloud. You can access this cloud based Windows instance via Remote Desktop


Charges for EC2 are minimal and more importantly there is a free tier available for 12 months with the following details.


Watch the following video which shows how to launch a Windows instance in Amazon EC2.

You may also watch the following tutorial which explains the same.

Detailed AWS EC2 documentation for managing Windows instances may be viewed at the following link.


Once you connect to the Windows instance via Remote Desktop, you can download and install WebHarvy in it. You will have to make sure that .Net 3.5 is installed in the Windows instance so that WebHarvy can run properly. Please contact us in case you need any assistance.

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USBTrace – Device Class Decoders Updated

Class decoder DLLs are now bundled along with USBTrace installation. So there is no need to download and install them separately as with previous versions. The following are the changes in the latest version (3.0) of USBTrace USB Protocol Analyzer.

HID class decoder has been updated as per the latest HID Usage Table specification.

USB Hub Class decoder has been updated as per the 3.0 specification.

Mass Storage (MSD) device class decoder has been updated as per SPC 3 and MMC 5 specifications.

The video class decoder has been updated as per UVC 1.5 specification.

We have also updated the Vendor Specific Class decoder sample DLL code to work with the latest version of Microsoft Visual Studio.

The latest version of USBTrace USB Analyzer may be downloaded from http://www.sysnucleus.com/usbtrace_download.html

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Analyze USB 3.0 devices with the new USBTrace

With the latest version of USBTrace USB Protocol Analyzer Software,  you can capture and analyze USB 3.0 traffic on all versions of Windows (XP to 8.1, both 32 and 64 bit) with ease. USB 3.0 (Super Speed) enumeration traffic capture, device class decoding etc. are fully supported. The following USB 3.0 specific data are captured.

  • USB 3.0 Standard Descriptors
    • Binary Device Object Store (BOS) descriptor
    • Super Speed Endpoint Companion descriptor
    • Super Speed USB Device Capability descriptor
      • USB 2.0 Extension
      • Super Speed USB device capability
      • Container ID
  • USB 3.0 Standard device requests
    • SET_SEL

Download and try the latest version of USBTrace USB Analyzer Software for Windows from http://www.sysnucleus.com/usbtrace_download.html

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USBTrace version 3.0 Released !

The latest update of USBTrace (3.0) is available for download at http://www.sysnucleus.com/usbtrace_download.html. The major changes in this release are :

  1. Fixed USB 3.0 device enumeration traffic capture issues
  2. Displays endpoint address for USB 3.0 transactions
  3. Updated HID class decoder as per the latest HID Usage Table specification (Hut1_12v2)
  4. Updated Hub class decoder : USB 3.0 hub class support
  5. Updated Mass Storage class decoder (SPC 3, MMC 5 specification)
  6. Updated Video class decoder (UVC 1.5 specification)
  7. Minor UI changes
  8. Class decoders bundled along with installer
  9. Updated USB Vendor list
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Scraping hidden details using WebHarvy

WebHarvy allows you to scrape hidden fields in websites which are displayed only when you click on a link or button. The ‘Click’ option in the Capture window can be used to display such ‘click to display’ fields. The following video shows the process.

The video below shows how contact details from Craigslist listing pages can be extracted using this feature.

WebHarvy also allows you to scrape data from the HTML of the page. For example, the following video shows how geo location (latitude, longitude) can be extracted from yellow page listings (map details) from its HTML – this data is not visible in browser.

 Know More

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Scraping images : various methods : WebHarvy

WebHarvy lets you scrape images from websites with ease (in addition to text). During configuration, you can directly click on an image to capture it. The resulting Capture window displayed will have a ‘Capture Image’ button, clicking which either the image file can be downloaded or its URL be captured. Know More.

Images can also be downloaded from its URL obtained by applying Regular Expression on its HTML content. This method is shown in the following demonstration video.

Watch more demonstration videos

Download the free trial version

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Scraping data from HTML by applying Regular Expressions

WebHarvy can scrape data from HTML source code of selected area (or whole of) of web pages by applying Regular Expressions.

During configuration, after clicking on an item, the ‘Capture HTML’ option under ‘More Options’ of Capture window allows the HTML of the item to be captured and displayed in the preview area. After this, Regular Expressions can be applied (More Options > Apply Regular Expression) to select data from a portion of the HTML code displayed.

The following video shows how this feature can be applied to scrape URLs from HTML.

Download & try the 15 days evaluation version

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