Mike-

Here's InstallShield's description of this error. Only we have access to the directory table in the installer, but it looks fine. Is it at all possible that the installer is unable to access certain directories??

Thanks.

Error 1606 is thrown by the CostFinalize standard action. One purpose of CostFinalize is to verify that all target directories are writable before allowing the installation to continue. If a directory table entry has been specified but the Installer is unable to resolve the path, this error will occur. For example, if you define INSTALLDIR as "Y:\MyFolder," and the Windows Installer cannot find a Y drive on the target machine, error 1606 will be thrown. This error can also occur when illegal characters or syntax are used within the directory table.