diff --git a/antivirusDetection.vbs b/antivirusDetection.vbs
index a4e76731f0b6..ad22e267343d 100755
--- a/antivirusDetection.vbs
+++ b/antivirusDetection.vbs
@@ -1,19 +1,25 @@
+On Error Resume Next
 Set objWMIService = GetObject("winmgmts:{impersonationLevel=impersonate}!\\.\root\SecurityCenter2")
-Set installedAntiviruses = objWMIService.ExecQuery("Select * from AntivirusProduct")
+If objWMIService is Nothing Then
+    Wscript.StdOut.Write "NULL"
+Else
+    Set installedAntiviruses = objWMIService.ExecQuery("Select * from AntivirusProduct")
 'Iterates through all the antivirus software,retrieved by the WMI query,present on the system and prints only the ones that are active
 'this is done by checking the 12th bit of the productState property of the antivirus
 'if 12th bit is on then it means that the antivirus is in active state
 'if 12th bit is off then it is inactive.
 'see http://neophob.com/2010/03/wmi-query-windows-securitycenter2/
-count=0
-list=""
-For Each antivirus in installedAntiviruses
-    If  antivirus.productState And &h01000 Then 'checking the state of the 12th bit of productState property of the antivirus
-    count=count+1
-    list=list & VBNewLine & VBtab & "*" & antivirus.displayName
+    count=0
+    list=""
+    For Each antivirus in installedAntiviruses
+        If  antivirus.productState And &h01000 Then 'checking the state of the 12th bit of productState property of the antivirus
+            count=count+1
+            list=list & VBNewLine & VBtab & "*" & antivirus.displayName
+        End if
+    Next
+    If count = 0 Then
+        Wscript.StdOut.Write "NOT_FOUND"
+    Else
+        Wscript.Echo list
     End if
-Next
-If count = 0 Then
- Wscript.StdOut.Write "NOT_FOUND"
-Else Wscript.Echo list
-End if
+End if
\ No newline at end of file
diff --git a/configure.ac b/configure.ac
index 615c9f2df8ee..4713f269ccbf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -12980,24 +12980,28 @@ dnl ===================================================================
 if test $_os = WINNT ; then
     AC_MSG_CHECKING([for active Antivirus software])
     ANTIVIRUS_LIST=`cscript.exe //Nologo $SRC_ROOT/antivirusDetection.vbs`
-    if [ [ "$ANTIVIRUS_LIST" != "NOT_FOUND" ] ]; then
-        AC_MSG_RESULT([found])
-        EICAR_STRING='X5O!P%@AP@<:@4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*'
-        echo $EICAR_STRING > $SRC_ROOT/eicar
-        EICAR_TEMP_FILE_CONTENTS=`cat $SRC_ROOT/eicar`
-        rm $SRC_ROOT/eicar
-        if [ [ "$EICAR_STRING" != "$EICAR_TEMP_FILE_CONTENTS" ] ]; then
-            AC_MSG_ERROR([Exclude the build and source directories associated with LibreOffice in the following Antivirus software: $ANTIVIRUS_LIST])
+    if [ [ "$ANTIVIRUS_LIST" != "NULL" ] ]; then
+        if [ [ "$ANTIVIRUS_LIST" != "NOT_FOUND" ] ]; then
+            AC_MSG_RESULT([found])
+            EICAR_STRING='X5O!P%@AP@<:@4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*'
+            echo $EICAR_STRING > $SRC_ROOT/eicar
+            EICAR_TEMP_FILE_CONTENTS=`cat $SRC_ROOT/eicar`
+            rm $SRC_ROOT/eicar
+            if [ [ "$EICAR_STRING" != "$EICAR_TEMP_FILE_CONTENTS" ] ]; then
+                AC_MSG_ERROR([Exclude the build and source directories associated with LibreOffice in the following Antivirus software: $ANTIVIRUS_LIST])
+            fi
+            echo $EICAR_STRING > $BUILDDIR/eicar
+            EICAR_TEMP_FILE_CONTENTS=`cat $BUILDDIR/eicar`
+            rm $BUILDDIR/eicar
+            if [ [ "$EICAR_STRING" != "$EICAR_TEMP_FILE_CONTENTS" ] ]; then
+                AC_MSG_ERROR([Exclude the build and source directories associated with LibreOffice in the following Antivirus software: $ANTIVIRUS_LIST])
+            fi
+            add_warning "To speed up builds and avoid failures in unit tests, it is highly recommended that you exclude the build and source directories associated with LibreOffice in the following Antivirus software: $ANTIVIRUS_LIST"
+        else
+            AC_MSG_RESULT([not found])
         fi
-        echo $EICAR_STRING > $BUILDDIR/eicar
-        EICAR_TEMP_FILE_CONTENTS=`cat $BUILDDIR/eicar`
-        rm $BUILDDIR/eicar
-        if [ [ "$EICAR_STRING" != "$EICAR_TEMP_FILE_CONTENTS" ] ]; then
-            AC_MSG_ERROR([Exclude the build and source directories associated with LibreOffice in the following Antivirus software: $ANTIVIRUS_LIST])
-        fi
-        add_warning "To speed up builds and avoid failures in unit tests, it is highly recommended that you exclude the build and source directories associated with LibreOffice in the following Antivirus software: $ANTIVIRUS_LIST"
     else
-        AC_MSG_RESULT([not found])
+        AC_MSG_RESULT([n/a])
     fi
 fi