The information in this article applies to:
On systems containing Windows XP, 2000, or NT 4.0; if ZoomText version 7.06 or 7.1x exist on the system and you attempt to install ZoomText 8 (versions 8.00 through 8.10.x), an "RPC error" or "Remote Procedure Call failed" may occur during the setup procedure. This causes the Setup program to exit without completing the installation of ZoomText 8.
Note: This problem does not occur when installing ZoomText 8.11 or later from a product or trial CD.
The problem can be resolved as follows: