This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Assuming a default installation path, does your "C:\Program Files\Apache Directory Server\instances\default\conf\server.xml" contain a partition to hold dc=vente,dc=com? If not, you need to create one.
I recommend adding something like this to your instance server.xml file spring:beans/defaultDirectoryService/partitions section:
I have made these changes to my environment and executed your LDIF successfully.