The Btrieve version 6.15 Workstation Engine has not been sold for a decade now, and Pervasive withdrew support long before the turn of the last millenium (partly due to potential Y2k issues). In spite of this, many applications representing many thousands of users run every day on this technology.
We at Analytica Business Systems recognize this, and still provide technical expertise and support on the Btrieve Workstation Engine. We even provide support contracts designed specifically to protect users' investments in their possibly-legacy applications and data that depend on it.
If you're having an issue related to the use of the Btrieve Workstation Engine v6.15, we invite you to post your question or problem here in this forum. If you have a suggestion or a hint, you can post that, too!