diff --git a/src/kvilib/ext/kvi_regusersdb.cpp b/src/kvilib/ext/kvi_regusersdb.cpp
index 1edd2d7..dcbd58a 100644
--- a/src/kvilib/ext/kvi_regusersdb.cpp
+++ b/src/kvilib/ext/kvi_regusersdb.cpp
@@ -330,7 +330,7 @@ KviRegisteredUserDataBase::~KviRegisteredUserDataBase()
 
 KviRegisteredUser * KviRegisteredUserDataBase::addUser(const TQString & name)
 {
-	if(name.isEmpty()) return false;
+	if(name.isEmpty()) return 0;
 	if(m_pUserDict->find(name))return 0;
 	KviRegisteredUser * u = new KviRegisteredUser(name);
 	m_pUserDict->replace(u->name(),u); //u->name() because we're NOT copying keys!
@@ -340,7 +340,7 @@ KviRegisteredUser * KviRegisteredUserDataBase::addUser(const TQString & name)
 
 KviRegisteredUserGroup * KviRegisteredUserDataBase::addGroup(const TQString & name)
 {
-	if(name.isEmpty()) return false;
+	if(name.isEmpty()) return 0;
 	if(m_pGroupDict->find(name))return 0;
 	KviRegisteredUserGroup * pGroup = new KviRegisteredUserGroup(name);
 	m_pGroupDict->replace(pGroup->name(),pGroup); //u->name() because we're NOT copying keys!
@@ -592,7 +592,7 @@ KviRegisteredUser * KviRegisteredUserDataBase::findMatchingUser(const TQString &
 KviRegisteredMask * KviRegisteredUserDataBase::findMatchingMask(const TQString & nick,const TQString &user,const TQString & host)
 {
 	// first lookup the nickname in the maskDict
-	if(nick.isEmpty()) return false;
+	if(nick.isEmpty()) return 0;
 	KviRegisteredMaskList * l = m_pMaskDict->find(nick);
 	if(l)
 	{
diff --git a/src/kvirc/kvs/kvi_kvs_parser_dollar.cpp b/src/kvirc/kvs/kvi_kvs_parser_dollar.cpp
index b556614..a6afcc6 100644
--- a/src/kvirc/kvs/kvi_kvs_parser_dollar.cpp
+++ b/src/kvirc/kvs/kvi_kvs_parser_dollar.cpp
@@ -82,10 +82,10 @@ KviKvsTreeNodeData * KviKvsParser::parseDollar(bool bInObjScope)
 		KviKvsTreeNodeInstruction * i = parseInstructionBlock();
 		if(!i)
 		{
-			if(error())return false;
+			if(error())return 0;
 			// trigger an error anyway: this is abused syntax :D
 			error(KVSP_curCharPointer,__tr2qs("Empty instruction block for command evaluation"));
-			return false;
+			return 0;
 		}
 
 		return new KviKvsTreeNodeCommandEvaluation(pDollarBegin,i);
diff --git a/src/kvirc/kvs/kvi_kvs_treenode_arrayelement.cpp b/src/kvirc/kvs/kvi_kvs_treenode_arrayelement.cpp
index e3cd668..196698d 100644
--- a/src/kvirc/kvs/kvi_kvs_treenode_arrayelement.cpp
+++ b/src/kvirc/kvs/kvi_kvs_treenode_arrayelement.cpp
@@ -125,7 +125,7 @@ KviKvsRWEvaluationResult * KviKvsTreeNodeArrayElement::evaluateReadWriteInObject
 {
 #ifdef COMPILE_NEW_KVS
 	kvs_int_t iVal;
-	if(!evaluateIndex(c,iVal))return false;
+	if(!evaluateIndex(c,iVal))return 0;
 
 	KviKvsRWEvaluationResult * result;
 	if(o)result = m_pSource->evaluateReadWriteInObjectScope(o,c);
diff --git a/src/kvirc/kvs/kvi_kvs_treenode_arrayreferenceassert.cpp b/src/kvirc/kvs/kvi_kvs_treenode_arrayreferenceassert.cpp
index 0d52c07..5df818e 100644
--- a/src/kvirc/kvs/kvi_kvs_treenode_arrayreferenceassert.cpp
+++ b/src/kvirc/kvs/kvi_kvs_treenode_arrayreferenceassert.cpp
@@ -88,7 +88,7 @@ KviKvsRWEvaluationResult * KviKvsTreeNodeArrayReferenceAssert::evaluateReadWrite
 	KviKvsRWEvaluationResult * r;
 	if(o)r = m_pSource->evaluateReadWriteInObjectScope(o,c);
 	else r = m_pSource->evaluateReadWrite(c);
-	if(!r)return false;
+	if(!r)return 0;
 
 	return r;
 #else
diff --git a/src/kvirc/kvs/kvi_kvs_treenode_extendedscopevariable.cpp b/src/kvirc/kvs/kvi_kvs_treenode_extendedscopevariable.cpp
index 74a5e84..e263eba 100644
--- a/src/kvirc/kvs/kvi_kvs_treenode_extendedscopevariable.cpp
+++ b/src/kvirc/kvs/kvi_kvs_treenode_extendedscopevariable.cpp
@@ -72,7 +72,7 @@ KviKvsRWEvaluationResult * KviKvsTreeNodeExtendedScopeVariable::evaluateReadWrit
 	if(!c->extendedScopeVariables())
 	{
 		c->error(this,__tr2qs("There are no extended scope variables in this scope"));
-		return false;
+		return 0;
 	}
 
 	return new KviKvsHashElement(0,c->extendedScopeVariables()->get(m_szIdentifier),c->extendedScopeVariables(),m_szIdentifier);
diff --git a/src/kvirc/kvs/kvi_kvs_treenode_hashreferenceassert.cpp b/src/kvirc/kvs/kvi_kvs_treenode_hashreferenceassert.cpp
index 954e221..8cff668 100644
--- a/src/kvirc/kvs/kvi_kvs_treenode_hashreferenceassert.cpp
+++ b/src/kvirc/kvs/kvi_kvs_treenode_hashreferenceassert.cpp
@@ -88,7 +88,7 @@ KviKvsRWEvaluationResult * KviKvsTreeNodeHashReferenceAssert::evaluateReadWriteI
 	KviKvsRWEvaluationResult * r;
 	if(o)r = m_pSource->evaluateReadWriteInObjectScope(o,c);
 	else r = m_pSource->evaluateReadWrite(c);
-	if(!r)return false;
+	if(!r)return 0;
 
 	return r;
 #else
diff --git a/src/modules/mediaplayer/mp_amarokinterface.cpp b/src/modules/mediaplayer/mp_amarokinterface.cpp
index 7a458b2..7706450 100644
--- a/src/modules/mediaplayer/mp_amarokinterface.cpp
+++ b/src/modules/mediaplayer/mp_amarokinterface.cpp
@@ -79,7 +79,7 @@ bool KviAmarokInterface::setVol(kvs_int_t &iVol)
 TQString KviAmarokInterface::_fncname() \
 { \
 	TQString ret; \
-	if(!stringRetVoidDCOPCall(_iface,_fnc,ret))return false; \
+	if(!stringRetVoidDCOPCall(_iface,_fnc,ret))return 0; \
 	return ret; \
 }
 
@@ -168,7 +168,7 @@ KviMediaPlayerInterface::PlayerStatus KviAmarokInterface::status()
 TQString KviAmarokInterface::mrl()
 {
 	TQString ret;
-	if(!stringRetVoidDCOPCall("player","encodedURL()",ret))return false;
+	if(!stringRetVoidDCOPCall("player","encodedURL()",ret))return 0;
 	KURL url(ret);
 	return url.prettyURL();
 }
diff --git a/src/modules/mediaplayer/mp_jukinterface.cpp b/src/modules/mediaplayer/mp_jukinterface.cpp
index 190b0af..3ce2abc 100644
--- a/src/modules/mediaplayer/mp_jukinterface.cpp
+++ b/src/modules/mediaplayer/mp_jukinterface.cpp
@@ -102,7 +102,7 @@ bool KviJukInterface::setShuffle(bool &bVal)
 TQString KviJukInterface::_fncname() \
 { \
 	TQString ret; \
-	if(!stringRetVoidDCOPCall(_iface,_fnc,ret))return false; \
+	if(!stringRetVoidDCOPCall(_iface,_fnc,ret))return 0; \
 	return ret; \
 }