Problem getting response with Powershell

[Corvus71]

I installed the yamldap on windows and I can get it to work when I perform an ldapsearch from another linux system
ldapsearch -x -H ldap://localhost:11389 -b "dc=example,dc=com" "(objectClass=*)"

However when I try the same on the localhost with powershell I get no response
I ran yampldap in the following way:
yamldap.exe -f sample_directory.yaml -p 11389 --allow-anonymous -v

PS C:\Temp\Yamldap> $ldapHost = New-Object System.DirectoryServices.DirectoryEntry("LDAP://localhost:11389/dc=example,dc=com")
PS C:\Temp\Yamldap> $ldapQuery = New-Object System.DirectoryServices.DirectorySearcher
PS C:\Temp\Yamldap> $ldapQuery.SearchRoot = $ldapHost
PS C:\Temp\Yamldap> $ldapQuery.Filter = "(objectclass=*)"
PS C:\Temp\Yamldap> $ldapQuery.SearchScope = "Subtree"
PS C:\Temp\Yamldap> $results = $ldapQuery.FindAll() --> And here it hangs until I kill yamldap.

I am not a programmer so I cannot dive into the code to figure out what is wrong.
Any ideas on how to continue?