Tried that,same error:
C:\Windows\System32\WindowsPowerShell\v1.0\powersh ell.exe -nologo -noninteractive -executionpolicy Unrestricted "& 'C:\Program Files\VisBuildPro9\Test.ps1' Test1 ''Test{2[]??''"
Missing closing '}' in statement block or type definition.
+ CategoryInfo : ParserError: (

[], ParentContainsErrorRecordException
+ FullyQualifiedErrorId : MissingEndCurlyBrace
I see now the second param has 2 chars ' at beginning and 2 at end although I added just one.