The Interface proxy configuration can be found in pcadmanager.cfg:

Example interface:

[iface.solidedge]
Name_0=batch
#:VALS_N;0,1,2
RequestLevel_0=1
#:VALS_S;
Command_0=C:\Program Files\Solid Edge ST10\Program\Edge.exe
#:VALS_S;
Parameters_0=
#:VALS_N;
TimeOut_0=60000
#:VALS_S;
WorkingDirectory_0=%TEMP%
#:VALS_S;
EnhConfiguration_0=