Installed Adobe DNG Converter 11.1 but can't find it to run it!

I have Photoshop CS4 and Windows 7 Professional 32-bit.  I just got the EOS R and need to read its CR3 output files.  My PS CS4 only has (according to Help-->Plugins) Camera Raw plugin 5.0, so cannot read the CR3.  Further, newer Camera Raw plugins aren't supported by CS4.

At the end of the Adobe DNG Converter 11.1 Setup, it finds and fires up the old installation, version 7.3.0.71, and tells me "Click Finish to close Setup."

When I search under C:\Program Files for "DNG" the only two files found are 1) the old binary at C:\Program Files\Adobe DNG Converter.exe, and 2) a sample file C:\Program Files\Adobe\Adobe Photoshop CS4\Samples\Doors.dng .

I thought maybe the Setup couldn't overwrite the Adobe DNG Converter.exe without administrator priveleges, so I renamed it to Adobe DNG Converter.7.3.exe .  Upon re-running the 11.1 install, it now doesn't start anything, and the above DNG search still finds only the two files of before (with the old converter now renamed).

Typically such installs leave an icon on your desktop and an entry in the start menus, but I'm not seeing either.  Start-->Programs-->Adobe shows me the CS4 suite but no DNG converter (not even the old one).  There is nothing else under Start-->Programs starting with A or D that looks likely, such as a directory with a name like "Adobe Utilities" or "Adobe DNG Converter" or any such.

I'm posting in Camera Raw as google searches show Adobe's moved many such DNG Converter questions to Camera Raw.  Let me know if there's a better forum.

Also, just for clarification, will the converter output a DNG file that CS4 can actually read?  Or is this a waste of time?