Hi, When I used function esxListDefinedDomains at esx_driver.c to list defined domains and found that retuned array include some templates. Template just is a master image of a VM that can be used to create a new VM, maybe our function should not return this type of VM. So I changed some code to get config.template property and then discarded the 'true' items. Code changes may look like as following: if (esxVI_String_AppendValueListToList(&propertyNameList, "name\0" "runtime.powerState\0") < 0 || esxVI_LookupVirtualMachineList(priv->primary, propertyNameList, &virtualMachineList) < 0) Change to if (esxVI_String_AppendValueListToList(&propertyNameList, "name\0" "config.template\0" "runtime.powerState\0") < 0 || esxVI_LookupVirtualMachineList(priv->primary, propertyNameList, &virtualMachineList) < 0) After line 2493,insert if (esxVI_DomainIsTemplate(virtualMachine, &isTemplate) < 0) { goto cleanup; } if (isTemplate == esxVI_Boolean_True) { continue; } The function esxVI_DomainIsTemplate looks like this: int esxVI_DomainIsTemplate(esxVI_ObjectContent *virtualMachine, esxVI_Boolean *isTemplate) { esxVI_DynamicProperty *dynamicProperty; for (dynamicProperty = virtualMachine->propSet; dynamicProperty != NULL; dynamicProperty = dynamicProperty->_next) { if (STREQ(dynamicProperty->name, "config.template")) { if (esxVI_AnyType_ExpectType(dynamicProperty->val, esxVI_Type_Boolean) < 0) { return -1; } *isTemplate = dynamicProperty->val->boolean; return 0; } } ESX_VI_ERROR(VIR_ERR_INTERNAL_ERROR, "%s", _("Missing 'config.template' property")); return -1; } Regards, Dennis