Windows build fix
Windows build fix

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