How to find out oramts for oracle 12c is installed using registry entry in windows 2008r2 server?

We are using a custom setup program to do our installation. For our application to run we need oramts installed, before we install the application we do a prerequisites test to check if we have all the required components installed. With the earlier version we used the registry key "[SOFTWARE]\ORACLE\KEY_OraClient11g_home1\ORAMTS_CP_TRACE_DIR" to find if oramts is installed. But with the current installation we are not able to find what registry key is to be used.

Solution

With 12c client, Oracle Services for Microsoft Transaction Server is not a part of installation. You must explicitly run the OraMTSCtl utility to create the OraMTS Service.

C:\ORACLE_HOME\bin> oramtsctl.exe -new

Once it is done, you can verify from services.msc that the OraMTS service is created.

Quote from docs,

OraMTS Services Run as Oracle Home User

OraMTS services now operate as a specified, lower privileged user (the Oracle Home User). A utility is provided for cases where the service must be created manually rather than by the installer. Each Oracle Home now has its own OraMTS service.

Please see the documentation for Manually Creating an Oracle MTS Recovery Service

UPDATE

Adding a screenshot -

enter image description here

Above screenshot, "ORACLE" is the home for the 12c client, and has its own OraMTS service.