nicer this way

asn.1/pEpEngineASN1/pEpEngineASN1.vcxproj

@@ -61,9 +61,8 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
     <PreBuildEvent>
-      <Command>cd ..
-asn1c -gen-PER -fincludes-quoted -fcompound-names -pdu=PEP.Message pEp.asn1 devicegroup.asn1
-del converter-sample.c
+      <Command>cd "$(ProjectDir).." &amp;&amp; "%ASN1C%\bin\asn1c" -S "%ASN1C%\share\asn1c" -gen-PER -fincludes-quoted -fcompound-names -pdu=PEP.Message pEp.asn1 devicegroup.asn1 protocols.asn1
+cd "$(ProjectDir).." &amp;&amp; del converter-sample.c
 </Command>
     </PreBuildEvent>
     <PreBuildEvent>
@@ -99,11 +98,8 @@ del converter-sample.c
       <OptimizeReferences>true</OptimizeReferences>
     </Link>
     <PreBuildEvent>
-      <Command>cd ..
-del *.c
-del *.h
-asn1c -gen-PER -fincludes-quoted -fcompound-names -pdu=PEP.Message pEp.asn1 devicegroup.asn1
-del converter-sample.c
+      <Command>cd "$(ProjectDir).." &amp;&amp; "%ASN1C%\bin\asn1c" -S "%ASN1C%\share\asn1c" -gen-PER -fincludes-quoted -fcompound-names -pdu=PEP.Message pEp.asn1 devicegroup.asn1 protocols.asn1
+cd "$(ProjectDir).." &amp;&amp; del converter-sample.c
 </Command>
       <Message>compiling ASN.1 description</Message>
     </PreBuildEvent>

build-windows/pEpEngine.vcxproj

@@ -70,8 +70,6 @@
     <PreBuildEvent>
       <Command>cd "$(ProjectDir)..\sync" &amp;&amp; python "%YML_PATH%\yml2proc" -E utf-8 -y gen_statemachine.ysl2 devicegroup.fsm -o .statemachines
 cd "$(ProjectDir)..\sync" &amp;&amp; python "%YML_PATH%\yml2proc" -E utf-8 -ygen_actions_skeleton.ysl2 devicegroup.fsm -o .skeletons
-cd "$(ProjectDir)..\asn.1" &amp;&amp; "%ASN1C%\bin\asn1c" -S "%ASN1C%\share\asn1c" -gen-PER -fincludes-quoted -fcompound-names -pdu=PEP.Message pEp.asn1 devicegroup.asn1 protocols.asn1
-cd "$(ProjectDir)..\asn.1" &amp;&amp; del converter-sample.c
 </Command>
     </PreBuildEvent>
   </ItemDefinitionGroup>
@@ -100,8 +98,6 @@ cd "$(ProjectDir)..\asn.1" &amp;&amp; del converter-sample.c
     <PreBuildEvent>
       <Command>cd "$(ProjectDir)..\sync" &amp;&amp; python "%YML_PATH%\yml2proc" -E utf-8 -y gen_statemachine.ysl2 devicegroup.fsm -o .statemachines
 cd "$(ProjectDir)..\sync" &amp;&amp; python "%YML_PATH%\yml2proc" -E utf-8 -ygen_actions_skeleton.ysl2 devicegroup.fsm -o .skeletons
-cd "$(ProjectDir)..\asn.1" &amp;&amp; "%ASN1C%\bin\asn1c" -S "%ASN1C%\share\asn1c" -gen-PER -fincludes-quoted -fcompound-names -pdu=PEP.Message pEp.asn1 devicegroup.asn1 protocols.asn1
-cd "$(ProjectDir)..\asn.1" &amp;&amp; del converter-sample.c
 </Command>
     </PreBuildEvent>
   </ItemDefinitionGroup>