I was trying to get this working ... calling a powershell as a post process. It works when the config is executed from the commandline (snapcreator.exe --profile TESTSERVERS --action snap --policy daily --config hksql4.SD.daily.1 --verbose --debug)
I was not working when the config is executing using the GUI ... powershell hangs and never exits. If you want this to work, you need to add <NUL at the end of the powershell command BUT snapcreator sees the < as an invalid character.
So I called the help of a little helper (good old DOS ) and changed the "POST_NTAP_DATA_TRANSFER" line to
SC allows most special chars in config file but "<" gives problems. SC must convert everything into SOAP since we use this for communications between agent and server and it is basically XML, so charachters like that break SC which is why we dont allow them.
Glad you got it working, like you said sometimes simple things like DOS can provide good solutions