Index: ninan-backend/src/main/java/dk/team/ninan/backend/command/AbstractProcessStarter.java
===================================================================
--- ninan-backend/src/main/java/dk/team/ninan/backend/command/AbstractProcessStarter.java	(revision 3061)
+++ ninan-backend/src/main/java/dk/team/ninan/backend/command/AbstractProcessStarter.java	(working copy)
@@ -8,6 +8,7 @@
 import dk.team.ninan.backend.BaseThread;
 import dk.team.ninan.backend.IUserMessages;
 import dk.team.ninan.backend.util.Log;
+import dk.team.ninan.backend.util.OSUtil;
 import dk.team.ninan.backend.util.SpringApplicationContext;
 
 public abstract class AbstractProcessStarter {
@@ -129,7 +130,7 @@
 	}
 
 	protected String addQuotesIfNeeded(String str) {
-		if (str.indexOf(' ') == -1) {
+		if (!OSUtil.isWindows() || str.indexOf(' ') == -1) {
 			return str;
 		}
 		return new StringBuilder("\"").append(str).append("\"").toString();
Index: ninan-backend/src/main/java/dk/team/ninan/backend/parcheck/ParChecker.java
===================================================================
--- ninan-backend/src/main/java/dk/team/ninan/backend/parcheck/ParChecker.java	(revision 3061)
+++ ninan-backend/src/main/java/dk/team/ninan/backend/parcheck/ParChecker.java	(working copy)
@@ -122,10 +122,7 @@
 					}
 				}
 
-				String osQuotedString = par2FileName;
-				if (OSUtil.isWindows())
-					osQuotedString = addQuotesIfNeeded(osQuotedString);
-				processArgsList.add(osQuotedString);
+				processArgsList.add(addQuotesIfNeeded(par2FileName));
 
 				if (Config.isParMergeSplitFilesEnabled()) {
 					if (OSUtil.isWindows()) {
@@ -134,13 +131,7 @@
 					}
 					String[] filesInDir = FileUtilities.listInDirectory(parFileDir);
 					for (int i = 0; i < filesInDir.length; i++) {
-						String fileName;
-						if (OSUtil.isWindows())
-							fileName = addQuotesIfNeeded(filesInDir[i]);
-						else
-							fileName = filesInDir[i];
-
-						processArgsList.add(fileName);
+						processArgsList.add(addQuotesIfNeeded(filesInDir[i]));
 					}
 				}