There's now a beta version of Thoth Gateway 1.4.0 available for download here. I've tested it myself successfully on Windows Server 2012 with IIS 8.5 and .NET Framework 4.5. I would appreciate feedback from those who want to download and test it out on the same, or other, configurations.
Please note the following:
- The gateway no longer requires an Oracle client installed on the same machine (the web server). Similar to the way the "Thin JDBC" driver works, the "Managed ODP.NET" driver is just a single file (Oracle.ManagedDataAccess.dll) that is placed in the same "bin" folder as the gateway.
- The supplied web.config file includes a configSections/SectionGroup with the .NET 4.0 sections. If upgrading from an earlier framework version running the gateway, you probably need to update the config file.
- The "requestValidationMode" attribute of the "httpRuntime" node should be set to "2.0" to avoid problems when Apex passes HTML markup in the querystring (for success messages and the like).