diff --git a/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8.v11.suo b/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8.v11.suo
index d48a9cb52..3b78758d4 100644
Binary files a/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8.v11.suo and b/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8.v11.suo differ
diff --git a/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/laure_rc b/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/laure_rc
new file mode 100644
index 000000000..b4480494c
--- /dev/null
+++ b/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/laure_rc
@@ -0,0 +1,38 @@
+[sip]
+sip_port=5092
+sip_tcp_port=5092
+sip_tls_port=5093
+default_proxy=0
+ping_with_options=0
+register_only_when_network_is_up=0
+
+[auth_info_0]
+username=laure
+userid=laure
+passwd=secret
+realm="sip.example.org"
+
+
+[proxy_0]
+reg_proxy=sip.example.org
+reg_identity=sip:laure@sip.example.org
+reg_expires=3600
+reg_sendregister=1
+publish=0
+dial_escape_plus=0
+
+
+[rtp]
+audio_rtp_port=9010
+video_rtp_port=9012
+
+[video]
+display=0
+capture=0
+show_local=0
+size=vga
+enabled=0
+self_view=0
+automatically_initiate=0
+automatically_accept=0
+device=StaticImage: Static picture
\ No newline at end of file
diff --git a/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/marie_rc b/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/marie_rc
new file mode 100644
index 000000000..26cb42992
--- /dev/null
+++ b/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/marie_rc
@@ -0,0 +1,44 @@
+[sip]
+sip_port=5082
+sip_tcp_port=5082
+sip_tls_port=5083
+default_proxy=0
+ping_with_options=0
+register_only_when_network_is_up=0
+
+[auth_info_0]
+username=marie
+userid=marie
+passwd=secret
+realm="sip.example.org"
+
+
+[proxy_0]
+reg_proxy=sip.example.org;transport=tcp
+reg_route=sip.example.org;transport=tcp;lr
+reg_identity=sip:marie@sip.example.org
+reg_expires=3600
+reg_sendregister=1
+publish=0
+dial_escape_plus=0
+
+[friend_0]
+url="Paupoche" <sip:pauline@sip.example.org>
+pol=accept
+subscribe=0
+
+
+[rtp]
+audio_rtp_port=8070
+video_rtp_port=8072
+
+[video]
+display=0
+capture=0
+show_local=0
+size=vga
+enabled=0
+self_view=0
+automatically_initiate=0
+automatically_accept=0
+device=StaticImage: Static picture
\ No newline at end of file
diff --git a/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/multi_account_lrc b/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/multi_account_lrc
new file mode 100644
index 000000000..df91cf251
--- /dev/null
+++ b/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/multi_account_lrc
@@ -0,0 +1,55 @@
+[sip]
+sip_port=5072
+sip_tcp_port=5072
+sip_tls_port=5073
+default_proxy=0
+
+[auth_info_0]
+username=liblinphone_tester
+userid=liblinphone_tester
+passwd=secret
+realm="auth.example.org"
+
+[auth_info_1]
+username=pauline
+userid=pauline
+passwd=secret
+realm="sip.example.org"
+
+[auth_info_2]
+username=liblinphone_tester
+userid=liblinphone_tester
+passwd=secret
+realm="auth1.example.org"
+
+[auth_info_3]
+username=marie
+userid=marie
+passwd=secret
+realm="sip.example.org"
+
+[proxy_0]
+reg_proxy=sip.example.org;transport=tls
+reg_identity=sip:pauline@sip.example.org
+reg_expires=3600
+reg_sendregister=1
+publish=0
+dial_escape_plus=0
+
+[proxy_1]
+reg_proxy=sip.example.org;transport=tcp
+reg_identity=sip:marie@sip.example.org
+reg_expires=3600
+reg_sendregister=1
+publish=0
+dial_escape_plus=0
+
+[proxy_2]
+reg_proxy=auth1.example.org
+reg_identity=sip:liblinphone_tester@auth1.example.org
+reg_expires=3600
+reg_sendregister=1
+publish=0
+dial_escape_plus=0
+
+
diff --git a/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/oldphone.wav b/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/oldphone.wav
new file mode 100644
index 000000000..e3056cc5d
Binary files /dev/null and b/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/oldphone.wav differ
diff --git a/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/pauline_rc b/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/pauline_rc
new file mode 100644
index 000000000..f2da8991c
--- /dev/null
+++ b/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/pauline_rc
@@ -0,0 +1,43 @@
+[sip]
+sip_port=5072
+sip_tcp_port=5072
+sip_tls_port=5073
+default_proxy=0
+ping_with_options=0
+register_only_when_network_is_up=0
+
+[auth_info_0]
+username=pauline
+userid=pauline
+passwd=secret
+realm="sip.example.org"
+
+
+[proxy_0]
+reg_proxy=sip.example.org;transport=tls
+reg_route=sip.example.org;transport=tls;lr
+reg_identity=sip:pauline@sip.example.org
+reg_expires=3600
+reg_sendregister=1
+publish=0
+dial_escape_plus=0
+
+#[friend_0]
+#url="Mariette" <sip:marie@sip.example.org>
+#pol=accept
+#subscribe=0
+
+[rtp]
+audio_rtp_port=8090
+video_rtp_port=8092
+
+[video]
+display=0
+capture=0
+show_local=0
+size=vga
+enabled=0
+self_view=0
+automatically_initiate=0
+automatically_accept=0
+device=StaticImage: Static picture
\ No newline at end of file
diff --git a/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/ringback.wav b/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/ringback.wav
new file mode 100644
index 000000000..21f4b5bfb
Binary files /dev/null and b/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/Assets/ringback.wav differ
diff --git a/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/LibLinphoneTester-wp8.csproj b/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/LibLinphoneTester-wp8.csproj
index 813ca7641..43c29fa40 100644
--- a/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/LibLinphoneTester-wp8.csproj
+++ b/build/vsx/LibLinphoneTester-wp8/LibLinphoneTester-wp8/LibLinphoneTester-wp8.csproj
@@ -129,6 +129,11 @@
     </Page>
   </ItemGroup>
   <ItemGroup>
+    <Content Include="Assets\laure_rc" />
+    <Content Include="Assets\marie_rc" />
+    <Content Include="Assets\oldphone.wav" />
+    <Content Include="Assets\pauline_rc" />
+    <Content Include="Assets\multi_account_lrc" />
     <None Include="Properties\AppManifest.xml" />
     <None Include="Properties\WMAppManifest.xml">
       <SubType>Designer</SubType>
@@ -139,6 +144,7 @@
     <Content Include="Assets\ApplicationIcon.png">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
+    <Content Include="Assets\ringback.wav" />
     <Content Include="Assets\Tiles\FlipCycleTileLarge.png">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
@@ -170,6 +176,7 @@
       <Name>LibLinphoneTester</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup />
   <Import Project="$(MSBuildExtensionsPath)\Microsoft\$(TargetFrameworkIdentifier)\$(TargetFrameworkVersion)\Microsoft.$(TargetFrameworkIdentifier).$(TargetFrameworkVersion).Overrides.targets" />
   <Import Project="$(MSBuildExtensionsPath)\Microsoft\$(TargetFrameworkIdentifier)\$(TargetFrameworkVersion)\Microsoft.$(TargetFrameworkIdentifier).CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
diff --git a/build/vsx/LibLinphoneTester/linphone-tester-native.cpp b/build/vsx/LibLinphoneTester/linphone-tester-native.cpp
index ef7c34af3..7d83518b3 100644
--- a/build/vsx/LibLinphoneTester/linphone-tester-native.cpp
+++ b/build/vsx/LibLinphoneTester/linphone-tester-native.cpp
@@ -2,7 +2,8 @@
 
 #include "linphone-tester-native.h"
 #include "ortp/logging.h"
-#include "cunit/Util.h"
+#include "cunit/Util.h"
+
 
 using namespace linphone_tester_native;
 using namespace Platform;
diff --git a/tester/call_tester.c b/tester/call_tester.c
index b7ff3465c..37ac101a6 100644
--- a/tester/call_tester.c
+++ b/tester/call_tester.c
@@ -141,8 +141,8 @@ static bool_t call(LinphoneCoreManager* caller_mgr,LinphoneCoreManager* callee_m
 }
 
 static void simple_call(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
 
 	LinphoneCore* lc_marie=marie->lc;
 	LinphoneCore* lc_pauline=pauline->lc;
@@ -182,8 +182,8 @@ static void simple_call(void) {
 }
 
 static void cancelled_call(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
 
 	LinphoneCall* out_call = linphone_core_invite(pauline->lc,"marie");
 	linphone_call_ref(out_call);
@@ -200,7 +200,7 @@ static void cancelled_call(void) {
 }
 
 static void call_with_dns_time_out(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new(NULL);
+	LinphoneCoreManager* marie = linphone_core_manager_new(NULL, NULL);
 	LCSipTransports transport = {9773,0,0,0};
 	linphone_core_set_sip_transports(marie->lc,&transport);
 	linphone_core_iterate(marie->lc);
@@ -215,8 +215,8 @@ static void call_with_dns_time_out(void) {
 }
 
 static void cancelled_ringing_call(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
 
 	LinphoneCall* out_call = linphone_core_invite(pauline->lc,"marie");
 	linphone_call_ref(out_call);
@@ -233,8 +233,9 @@ static void cancelled_ringing_call(void) {
 }
 
 static void early_declined_call(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
+
 	LinphoneCall* in_call;
 	LinphoneCall* out_call = linphone_core_invite(pauline->lc,"marie");
 	linphone_call_ref(out_call);
@@ -254,8 +255,8 @@ static void early_declined_call(void) {
 }
 
 static void call_terminated_by_caller(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
 
 	CU_ASSERT_TRUE(call(pauline,marie));
 	/*just to sleep*/
@@ -268,8 +269,8 @@ static void call_terminated_by_caller(void) {
 }
 
 static void call_paused_resumed(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
 	LinphoneCall* call_obj;
 
 	CU_ASSERT_TRUE(call(pauline,marie));
@@ -306,8 +307,8 @@ static bool_t pause_call_1(LinphoneCoreManager* mgr_1,LinphoneCall* call_1,Linph
 }
 
 static void call_paused_resumed_from_callee(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
 	LinphoneCall* call_obj;
 
 	CU_ASSERT_TRUE(call(pauline,marie));
@@ -332,8 +333,8 @@ static void call_paused_resumed_from_callee(void) {
 }
 
 static void call_with_video_added(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
 	LinphoneCall* call_obj;
 	LinphoneVideoPolicy  pauline_policy;
 	LinphoneCallParams* marie_params;
@@ -375,12 +376,12 @@ static void call_with_video_added(void) {
 }
 
 static void simple_conference(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
+	LinphoneCoreManager* laure = linphone_core_manager_new(FILE_PREFIX, "laure_rc");
 	stats initial_marie_stat;
 	stats initial_pauline_stat;
 	stats initial_laure_stat;
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
-	LinphoneCoreManager* laure = linphone_core_manager_new("./tester/laure_rc");
 
 	LinphoneCall* marie_call_pauline;
 	LinphoneCall* pauline_called_by_marie;
@@ -432,8 +433,8 @@ static void simple_conference(void) {
 }
 
 static void srtp_call(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
 
 	linphone_core_set_media_encryption(marie->lc,LinphoneMediaEncryptionSRTP);
 	linphone_core_set_media_encryption(pauline->lc,LinphoneMediaEncryptionSRTP);
@@ -453,9 +454,8 @@ static void srtp_call(void) {
 }
 
 static void early_media_call(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_early_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
-
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_early_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
 
 	CU_ASSERT_TRUE(call(pauline,marie));
 
@@ -471,9 +471,9 @@ static void early_media_call(void) {
 }
 
 static void simple_call_transfer(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
-	LinphoneCoreManager* laure = linphone_core_manager_new("./tester/laure_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
+	LinphoneCoreManager* laure = linphone_core_manager_new(FILE_PREFIX, "laure_rc");
 	LinphoneCall* pauline_called_by_marie;
 	LinphoneCall* marie_call_pauline;
 
@@ -521,9 +521,9 @@ static void simple_call_transfer(void) {
 }
 
 static void call_transfer_existing_call_outgoing_call(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
-	LinphoneCoreManager* laure = linphone_core_manager_new("./tester/laure_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
+	LinphoneCoreManager* laure = linphone_core_manager_new(FILE_PREFIX, "laure_rc");
 
 	LinphoneCall* marie_call_pauline;
 	LinphoneCall* pauline_called_by_marie;
diff --git a/tester/liblinphone_tester.c b/tester/liblinphone_tester.c
index e92037e17..032e7fe94 100644
--- a/tester/liblinphone_tester.c
+++ b/tester/liblinphone_tester.c
@@ -82,15 +82,22 @@ void reset_counters( stats* counters) {
 	memset(counters,0,sizeof(stats));
 }
 
-LinphoneCore* configure_lc_from(LinphoneCoreVTable* v_table, const char* file,int proxy_count) {
+LinphoneCore* configure_lc_from(LinphoneCoreVTable* v_table, const char* path, const char* file, int proxy_count) {
 	LinphoneCore* lc;
 	int retry=0;
 	stats* counters;
-	lc =  linphone_core_new(v_table,NULL,file,NULL);
+	char filepath[50];
+	char ringpath[50];
+	char ringbackpath[50];
+	sprintf(filepath, "%s/%s", path, file);
+	lc =  linphone_core_new(v_table,NULL,filepath,NULL);
 	linphone_core_set_user_data(lc,&global_stat);
 	counters = (stats*)linphone_core_get_user_data(lc);
-	linphone_core_set_ring(lc,"./share/rings/oldphone.wav");
-	linphone_core_set_ringback(lc,"./share/ringback.wav");
+	
+	sprintf(ringpath, "%s/%s", path, "oldphone.wav");
+	sprintf(ringbackpath, "%s/%s", path, "ringback.wav");
+	linphone_core_set_ring(lc, ringpath);
+	linphone_core_set_ringback(lc, ringbackpath);
 
 	reset_counters(counters);
 	CU_ASSERT_EQUAL(ms_list_size(linphone_core_get_proxy_config_list(lc)),proxy_count);
@@ -140,7 +147,7 @@ static void enable_codec(LinphoneCore* lc,const char* type,int rate) {
 	}
 }
 
-LinphoneCoreManager* linphone_core_manager_new(const char* rc_file) {
+LinphoneCoreManager* linphone_core_manager_new(const char* path, const char* rc_file) {
 	LinphoneCoreManager* mgr= malloc(sizeof(LinphoneCoreManager));
 	LinphoneProxyConfig* proxy;
 	memset (mgr,0,sizeof(LinphoneCoreManager));
@@ -151,7 +158,7 @@ LinphoneCoreManager* linphone_core_manager_new(const char* rc_file) {
 	mgr->v_table.new_subscription_request=new_subscribtion_request;
 	mgr->v_table.notify_presence_recv=notify_presence_received;
 	mgr->v_table.transfer_state_changed=linphone_transfer_state_changed;
-	mgr->lc=configure_lc_from(&mgr->v_table,rc_file,rc_file?1:0);
+	mgr->lc=configure_lc_from(&mgr->v_table, path, rc_file, rc_file?1:0);
 	enable_codec(mgr->lc,"PCMU",8000);
 	linphone_core_set_user_data(mgr->lc,&mgr->stat);
 	linphone_core_get_default_proxy(mgr->lc,&proxy);
diff --git a/tester/liblinphone_tester.h b/tester/liblinphone_tester.h
index 23983972a..209ebc46f 100644
--- a/tester/liblinphone_tester.h
+++ b/tester/liblinphone_tester.h
@@ -40,6 +40,11 @@ typedef struct {
 	test_t *tests;
 } test_suite_t;
 
+#if WINAPI_FAMILY_PHONE_APP
+#define FILE_PREFIX "Assets"
+#else
+#define FILE_PREFIX "./tester"
+#endif
 
 #ifdef __cplusplus
 extern "C" {
@@ -131,7 +136,7 @@ typedef struct _LinphoneCoreManager {
 } LinphoneCoreManager;
 
 
-LinphoneCoreManager* linphone_core_manager_new(const char* rc_file);
+LinphoneCoreManager* linphone_core_manager_new(const char * path, const char* rc_file);
 void linphone_core_manager_destroy(LinphoneCoreManager* mgr);
 
 void reset_counters( stats* counters);
@@ -147,7 +152,7 @@ void auth_info_requested(LinphoneCore *lc, const char *realm, const char *userna
 
 LinphoneCore* create_lc_with_auth(unsigned int with_auth) ;
 LinphoneAddress * create_linphone_address(const char * domain);
-LinphoneCore* configure_lc_from(LinphoneCoreVTable* v_table, const char* file,int proxy_count);
+LinphoneCore* configure_lc_from(LinphoneCoreVTable* v_table, const char* path, const char* file, int proxy_count);
 bool_t wait_for(LinphoneCore* lc_1, LinphoneCore* lc_2,int* counter,int value);
 bool_t wait_for_list(MSList* lcs,int* counter,int value,int timeout_ms);
 
diff --git a/tester/message_tester.c b/tester/message_tester.c
index d1d4382b5..6dd2325d2 100644
--- a/tester/message_tester.c
+++ b/tester/message_tester.c
@@ -62,8 +62,8 @@ void linphone_chat_message_state_change(LinphoneChatMessage* msg,LinphoneChatMes
 }
 
 static void text_message(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
 	char* to = linphone_address_as_string(marie->identity);
 	LinphoneChatRoom* chat_room = linphone_core_create_chat_room(pauline->lc,to);
 	linphone_chat_room_send_message(chat_room,"Bla bla bla bla");
@@ -74,8 +74,8 @@ static void text_message(void) {
 }
 
 static void text_message_with_ack(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
 	char* to = linphone_address_as_string(marie->identity);
 	LinphoneChatRoom* chat_room = linphone_core_create_chat_room(pauline->lc,to);
 	LinphoneChatMessage* message = linphone_chat_room_create_message(chat_room,"Bli bli bli \n blu");
@@ -88,8 +88,8 @@ static void text_message_with_ack(void) {
 }
 
 static void text_message_with_external_body(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
 	char* to = linphone_address_as_string(marie->identity);
 	LinphoneChatRoom* chat_room = linphone_core_create_chat_room(pauline->lc,to);
 	LinphoneChatMessage* message = linphone_chat_room_create_message(chat_room,"Bli bli bli \n blu");
@@ -105,8 +105,8 @@ static void text_message_with_external_body(void) {
 }
 
 static void text_message_with_send_error(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
 	char* to = linphone_address_as_string(pauline->identity);
 	LinphoneChatRoom* chat_room = linphone_core_create_chat_room(marie->lc,to);
 	LinphoneChatMessage* message = linphone_chat_room_create_message(chat_room,"Bli bli bli \n blu");
diff --git a/tester/presence_tester.c b/tester/presence_tester.c
index 6701e82d9..076f6c040 100644
--- a/tester/presence_tester.c
+++ b/tester/presence_tester.c
@@ -43,7 +43,7 @@ void notify_presence_received(LinphoneCore *lc, LinphoneFriend * lf) {
 }
 
 static void simple_publish(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
 	LinphoneProxyConfig* proxy;
 	linphone_core_get_default_proxy(marie->lc,&proxy);
 	linphone_proxy_config_edit(proxy);
@@ -54,8 +54,8 @@ static void simple_publish(void) {
 }
 
 static void simple_subscribe(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
-	LinphoneCoreManager* pauline = linphone_core_manager_new("./tester/pauline_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
+	LinphoneCoreManager* pauline = linphone_core_manager_new(FILE_PREFIX, "pauline_rc");
 	const MSList* marie_friends = linphone_core_get_friend_list(marie->lc);
 	LinphoneFriend* friend;
 	CU_ASSERT_PTR_NOT_NULL_FATAL(marie_friends);
@@ -74,7 +74,7 @@ static void simple_subscribe(void) {
 }
 
 static void unsubscribe_while_subscribing(void) {
-	LinphoneCoreManager* marie = linphone_core_manager_new("./tester/marie_rc");
+	LinphoneCoreManager* marie = linphone_core_manager_new(FILE_PREFIX, "marie_rc");
 	LinphoneFriend* friend = linphone_friend_new_with_addr("sip:toto@git.linphone.org"); /*any unexisting address*/
 	linphone_friend_edit(friend);
 	linphone_friend_enable_subscribes(friend,TRUE);
diff --git a/tester/register_tester.c b/tester/register_tester.c
index d318356b6..7c3805160 100644
--- a/tester/register_tester.c
+++ b/tester/register_tester.c
@@ -224,7 +224,7 @@ static void authenticated_register_with_late_credentials(){
 }
 
 static LinphoneCore* configure_lc(LinphoneCoreVTable* v_table) {
-	return configure_lc_from(v_table,"./tester/multi_account_lrc",3);
+	return configure_lc_from(v_table, FILE_PREFIX, "multi_account_lrc", 3);
 }
 
 static void multiple_proxy(){