Juergen,
I made some tests only with TestStand 3.0. I'm thinking that IVI steps are using IVI engine. So on your old instalation it's using ivi.ini file and on your ATE it will use XML config store. I'm thinking that you does not need any knowladge where is configuration stored. every time you should make these changes in some configuration aplikation like MAX.
a) I suggest update your developer machine to newer IVI engine. The source of troubles can be repeated capabilities. This feature is available in IVI engine 2.0 and higher and some drivers are using it. I'm thinking that all your drivers don't use this feature. ( I do not know ag32220 ).
b) if you have some reason, why you don't want update it, you should use MAX for co
nfiguration on both PC. I do not know if your version is using MAX or there was some shell integration to Windows explorer. ini file can be transfered to new config store with XML converter, but it's not possible translate XML config store back to ini file. May be it's possible, but you must make your own tool 😉
Greetings from Ostrava, Czech Republic 😉
Zdenek