Flying Pig Software moved its headquarters to Austin Texas. The move was precipitated by California state income tax burden and as a response to the 1989 earthquake that rocked the San Francisco Bay region.
1991, Zbasic’s DOS version was sold to 32 Bit Software Inc headed by Harry Gish of Dallas, Texas. The Ztree created by David Hearne was also part of the sale and additional changes were required by Harry Gish to be incorporated into the Z-Tree. The customer base for ZBasic was sold to Microsoft but Zedcor retained the rights to the Apple version of their ZBasic.