If i call two configuration: "Windows 7" and "Windows 7 64" wpi doesn't identify differences between them If i have IE9_win7_32.exe for configuration "Windows 7" and IE9_win7_64.exe for configuration "Windows 7 64" i have this "Windows 7" has IE9_win7_32.exe AND IE9_win7_64.exe (but i have assigned only the first) "Windows 7 64" has only IE9_win7_64.exe I have tried to rename "Windows 7 64" in "Windows 7_64" but no differences, i have completely changed name and it works... My question is, WPI doesn't like blank spaces in name configuration? it make no differences with names after spaces? Than