If you had the error “The system cannot find thfile specified-javaw.exe” when install tech2win for vxdiag vcx nano gm scanner. Here is the solution.
Solution:
Reinstall t2winstall program in GDS2Install folder
If system fails to install t2winstall program , you have to download full GDS2/Tech2win software and install again.
BUT
If GDS2 has the same error, follow the solution here:
https://vxdiag.com/blogs/blog/2025-newhow-to-fix-vxdiag-gm-gds2-cannot-find-file-specified
Good for car diagnose, unfortunately not recommended for anything more
Dear Friend,
Thank you for your feedback. Regarding your interest in the advanced functions of our device, we would like to provide the following additional details:
Our device supports programming, coding, and key programming features, which can meet basic operational needs. However, please note that if you require online programming capabilities, you will need to obtain the corresponding software online subscription account independently. As we currently do not provide such online subscription services, we are unable to directly offer related account support. We appreciate your understanding.
Additionally, the diagnostic software included free with the device is an offline version. This version only supports basic diagnostics and some special functions, and cannot be used for online programming operations. These functional limitations are primarily due to the 'offline' nature of the software. If you wish to access advanced features, we recommend obtaining an online subscription account for the software separately. Our device is fully compatible with official online software.
If you have any further questions, please feel free to contact us. We will do our best to assist you. Thank you for your understanding and support!
Best regards,
I would give it 5 stars if it were plug and play. It isnt per-say but it does in fact work and is very easy to use.
1. The tool can be used with the software provided or can be used with actual GMtsd tech2win subscription.
2. With the emulator provided you can do pretty much anything legit subscription can minus programming brand new modules to your car. This does not make the tool garbage...even if you have a gm technet subscription you still need a midi pass-through tool and this tool will do it.
3. As far as viruses and vpns go my technical opinion is that people's concerns are generally unjustified. If you have any experience with programming cards or say arduino boards there is nothing scary about installing some serial port drivers. Some manufactures use vpn for scan tools and module programming and the passthru tool has that capability.
Overall it saved me a few hundred dollars and dealing with the dealership, and it was kinda fun.
Was a little finicky to get to work correctly. Can find a few online walk throughs to help with order of software install. Once installed works exactly as it should. Can do all Tech2 functions on my 2002 Trans-Am. Pleased.
If you know what you're doing and what you're looking for, this will work for you.
