PRB: "InstallShield DLL Custom Action" error when installing Zetafax on a Windows NT system. Print ZTN1432 ID: ZTN1432 This Zetafax technical note applies to: Zetafax version 9 or later. Symptom When trying to install Zetafax on windows NT4 systems, the following error message is displayed. File 'C:\TEMP\ZFInstallDLL.dll' can not be found. Make sure the file is on target system or installed already. Cause This error can occur on NT systems that have not been updated using windows update. Resolution Run Windows update on the effected system, and then run the Zetafax installation program. Status This has been identified by Equisys as an issue with the software versions given above. Last updated: 10th February 2005 (SV/EB) Keywords: < Install> < ZFInstallDLL.dll>