Windows build fix
Windows build fix

jessdtate/SCIRun,moritzdannhauer/SCIRunGUIPrototype,moritzdannhauer/SCIRunGUIPrototype,jessdtate/SCIRun,jessdtate/SCIRun,jessdtate/SCIRun,jessdtate/SCIRun,moritzdannhauer/SCIRunGUIPrototype,moritzdannhauer/SCIRunGUIPrototype,moritzdannhauer/SCIRunGUIPrototype,jessdtate/SCIRun,moritzdannhauer/SCIRunGUIPrototype,jessdtate/SCIRun,jessdtate/SCIRun,moritzdannhauer/SCIRunGUIPrototype