RunAsInvoker
If you have an App-V app that complains about elevation but SHOULDN'T really need it, try adding this:
<ENVIRONMENT VARIABLE="__COMPAT_LAYER">RunAsInvoker</ENVIRONMENT>
That goes inside the <IMPLEMENTATION><VIRTUALENV><ENVLIST> tag. As always, location inside the tag doesn't matter, just that it's inside the tag. You can also use the same trick to set "process level" environment variables. Say, adding something to the PATH variable.