IntervalZero RTX64, Technical Support for Real-Time Windows 10

Technical Support

IntervalZero supports RTX/RTX64 products in the form of product documentation, video tutorials, add-on utilities, and help with issues via person-to-person support.

Support Issues may be submitted via a login and password that was provided with your support agreement.

To contact Support by phone, please call 781-996-4481 (+1 outside the U.S.). At the auto-answer prompt, please press 3 for Support.

Hours are Monday-Friday from 8:30 a.m. to 5:30 p.m. EST (excluding U.S. holidays).


The previous Customer Support portal is still accessible to view support issues that were closed prior to December 1, 2020. To access the old portal, click the link below and log in with your credentials.


Support and Lifecycle Policies

IntervalZero Support Agreement

Updated: 5/6/2020
The IntervalZero Support Agreement.

IntervalZero SDK Upgrade Agreement

Updated: 5/6/2020
The IntervalZero SDK Upgrade Agreement.

RTX64 Lifecycle

Updated: 5/25/2021
Information on the IntervalZero RTX64 product lifecycle.

RTX Lifecycle

Updated: 4/21/2021
Information on the IntervalZero RTX product lifecycle.