Please read our answers to all Frequently Asked Questions carefully. If you haven't found the answer to your question, if you have comments, suggestions or want to send us feedback, do not hesitate to contact our Help Desk.
YouTube has changed its configurations recently. This could cause the 'Signature error (4003)' in Free YouTube Download and Free YouTube to MP3 Converter. Make sure the version of your YouTube downloader is up-to-date. Use the links below:
Free YouTube Download
Free YouTube to MP3 Converter
If the problem still persists, please contact our support team.
Click Start → All Programs (Apps on Windows 8) → DVDVideoSoft → Uninstall (check the box 'Select all')
For the earlier versions you should also do the following:
If you need to send us a file for tests, please check its size.
If your file is less than 10 mb, register here and attach the file to the ticket.
If your file is more than 10 mb, please follow this instruction:
Open any DVDVideoSoft newsletter which you have received. Click the link "unsubscribe now" at the bottom of the message. That's all.
If you want to know whether you are the Administrator of your computer or not, go to Start → All Programs → Accessories → Command Prompt, then type the command chkdsk and press "Enter". If you are the Administrator of your computer, a program verifying a disk will run. But if you see a message "Access denied", you are not the Administrator.
YouTube Download for Mac and
YouTube To MP3 Converter for Mac are out! Get the latest build and share your opinion at Facebook page. More apps for Mac will be released soon, stay tuned!
Premium Membership is an exclusive license which gives you the following benefits:
- ad-free product
- priority tech support
- remote sessions to solve issues
- easy update management
Each license is issued with one 25-digit activation key.
In case of License usage infringement (e. g. subscription key sharing) the License can be blocked by our staff. Read more here.
Variant #1 (for Windows OS):
1. Choose the DVDVideoSoft application you want to activate
2. Launch this app and go to File - Activate Premium membership
3. Enter your activation key → Activate
Variant #2 (for Mac OS X):
1. Open one of the DVDVideoSoft YouTube Downloaders for Mac and go to the Mac menu bar
2. Now click on the program name and choose Preferences → Enter your activation key → Activate
or you can go to File → Activate Premium membership → Enter your activation key → Activate
Please note: the key activates premium features in one particular application. If you've activated the wrong app, don't hesitate to contact support team.
There are different pricing plans for Premium Membership. The detailed pricing information is published here
If you lost or forgot your Premium key, use our automatic key lookup tool