diff --git a/reactos/base/system/msiexec/msiexec.c b/reactos/base/system/msiexec/msiexec.c
index 5e9afd93bc0..6577c789a6a 100644
--- a/reactos/base/system/msiexec/msiexec.c
+++ b/reactos/base/system/msiexec/msiexec.c
@@ -139,7 +139,7 @@ static LPWSTR build_properties(struct string_list *property_list)
 	for(list = property_list; list; list = list->next)
 		len += lstrlenW(list->str) + 3;
 
-	ret = (WCHAR*) HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
+	ret = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
 
 	/* add a space before each string, and quote the value */
 	p = ret;
@@ -183,7 +183,7 @@ static LPWSTR build_transforms(struct string_list *transform_list)
 	for(list = transform_list; list; list = list->next)
 		len += lstrlenW(list->str) + 1;
 
-	ret = (WCHAR*) HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
+	ret = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
 
 	/* add all the transforms with a semicolon between each one */
 	p = ret;
@@ -215,7 +215,7 @@ static DWORD msi_atou(LPCWSTR str)
 static LPWSTR msi_strdup(LPCWSTR str)
 {
 	DWORD len = lstrlenW(str)+1;
-	LPWSTR ret = (WCHAR*) HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR)*len);
+	LPWSTR ret = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR)*len);
 	lstrcpyW(ret, str);
 	return ret;
 }
@@ -231,7 +231,7 @@ static BOOL msi_strequal(LPCWSTR str1, LPCSTR str2)
 		return FALSE;
 	if( lstrlenW(str1) != (len-1) )
 		return FALSE;
-	strW = (WCHAR*) HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR)*len);
+	strW = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR)*len);
 	MultiByteToWideChar( CP_ACP, 0, str2, -1, strW, len);
 	ret = CompareStringW(GetThreadLocale(), NORM_IGNORECASE, str1, len, strW, len);
 	HeapFree(GetProcessHeap(), 0, strW);
@@ -259,7 +259,7 @@ static BOOL msi_strprefix(LPCWSTR str1, LPCSTR str2)
 		return FALSE;
 	if( lstrlenW(str1) < (len-1) )
 		return FALSE;
-	strW = (WCHAR*) HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR)*len);
+	strW = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR)*len);
 	MultiByteToWideChar( CP_ACP, 0, str2, -1, strW, len);
 	ret = CompareStringW(GetThreadLocale(), NORM_IGNORECASE, str1, len-1, strW, len-1);
 	HeapFree(GetProcessHeap(), 0, strW);
@@ -454,7 +454,7 @@ static void process_args( WCHAR *cmdline, int *pargc, WCHAR ***pargv )
 	int i, n;
 
 	n = chomp( p );
-	argv = (WCHAR**) HeapAlloc(GetProcessHeap(), 0, sizeof (WCHAR*)*(n+1));
+	argv = HeapAlloc(GetProcessHeap(), 0, sizeof (WCHAR*)*(n+1));
 	for( i=0; i<n; i++ )
 	{
 		argv[i] = p;
@@ -480,7 +480,7 @@ static BOOL process_args_from_reg( LPWSTR ident, int *pargc, WCHAR ***pargv )
 	r = RegQueryValueExW(hkey, ident, 0, &type, 0, &sz);
 	if(r == ERROR_SUCCESS && type == REG_SZ)
 	{
-		buf = (WCHAR*) HeapAlloc(GetProcessHeap(), 0, sz);
+		buf = HeapAlloc(GetProcessHeap(), 0, sz);
 		r = RegQueryValueExW(hkey, ident, 0, &type, (LPBYTE)buf, &sz);
 		if( r == ERROR_SUCCESS )
 		{
@@ -663,10 +663,10 @@ int main(int argc, char **argv)
 			PackageName = argvW[i]+2;
 			if (!PackageName[0])
 			{
-			i++;
-			if(i >= argc)
-				ShowUsage(1);
-			PackageName = argvW[i];
+				i++;
+				if (i >= argc)
+					ShowUsage(1);
+				PackageName = argvW[i];
 			}
 			WINE_TRACE("PackageName = %s\n", wine_dbgstr_w(PackageName));
 			StringListAppend(&property_list, RemoveAll);
@@ -821,7 +821,7 @@ int main(int argc, char **argv)
 			LogFileName = argvW[i];
 			if(MsiEnableLogW(LogMode, LogFileName, LogAttributes) != ERROR_SUCCESS)
 			{
-				fprintf(stderr, "Logging in %s (0x%08lx, %lu) failed\n",
+				fprintf(stderr, "Logging in %s (0x%08x, %u) failed\n",
 					 wine_dbgstr_w(LogFileName), LogMode, LogAttributes);
 				ExitProcess(1);
 			}
@@ -852,23 +852,23 @@ int main(int argc, char **argv)
 			}
 			else if(msi_strequal(argvW[i]+2, "f"))
 			{
-				InstallUILevel = (INSTALLUILEVEL) (INSTALLUILEVEL_FULL|INSTALLUILEVEL_ENDDIALOG);
+				InstallUILevel = INSTALLUILEVEL_FULL|INSTALLUILEVEL_ENDDIALOG;
 			}
 			else if(msi_strequal(argvW[i]+2, "n+"))
 			{
-				InstallUILevel = (INSTALLUILEVEL) (INSTALLUILEVEL_NONE|INSTALLUILEVEL_ENDDIALOG);
+				InstallUILevel = INSTALLUILEVEL_NONE|INSTALLUILEVEL_ENDDIALOG;
 			}
 			else if(msi_strequal(argvW[i]+2, "b+"))
 			{
-				InstallUILevel = (INSTALLUILEVEL) (INSTALLUILEVEL_BASIC|INSTALLUILEVEL_ENDDIALOG);
+				InstallUILevel = INSTALLUILEVEL_BASIC|INSTALLUILEVEL_ENDDIALOG;
 			}
 			else if(msi_strequal(argvW[i]+2, "b-"))
 			{
-				InstallUILevel = (INSTALLUILEVEL) (INSTALLUILEVEL_BASIC|INSTALLUILEVEL_PROGRESSONLY);
+				InstallUILevel = INSTALLUILEVEL_BASIC|INSTALLUILEVEL_PROGRESSONLY;
 			}
 			else if(msi_strequal(argvW[i]+2, "b+!"))
 			{
-				InstallUILevel = (INSTALLUILEVEL) (INSTALLUILEVEL_BASIC|INSTALLUILEVEL_ENDDIALOG);
+				InstallUILevel = INSTALLUILEVEL_BASIC|INSTALLUILEVEL_ENDDIALOG;
 				WINE_FIXME("Unknown modifier: !\n");
 			}
 			else
diff --git a/reactos/base/system/msiexec/msiexec.rbuild b/reactos/base/system/msiexec/msiexec.rbuild
index a2141404bfe..bbc2494368a 100644
--- a/reactos/base/system/msiexec/msiexec.rbuild
+++ b/reactos/base/system/msiexec/msiexec.rbuild
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
 <!DOCTYPE module SYSTEM "../../../tools/rbuild/project.dtd">
-<module name="msiexec" type="win32gui" installbase="system32" installname="msiexec.exe" allowwarnings="true">
+<module name="msiexec" type="win32cui" installbase="system32" installname="msiexec.exe" allowwarnings="true">
 	<include base="msiexec">.</include>
 	<include base="ReactOS">include/wine</include>
 	<define name="_WIN32_IE">0x501</define>