"Invalid path (Path = '')" - Open form in the Administrator

I created two projects Audit and Forms in .net to open forms within the spring admin.

I changed the regedit to insert the keys of the new application.

When I open the admin correctly the forms appear, but when I try to open the form it gives the following error

  

Invalid path (Path = '').

Will some configuration be missing?

Content of Regedit :

  

[HKEY_LOCAL_MACHINE \ SOFTWARE \ Wow6432Node \ PRIMAVERA \ SGP900 \ Default \ EXT]   "Audit"="EXTAudit900"   "Exec"="Ext3rdParty"   "Forms"="ExtForms900"   
"Name"="Application Test"   
"DataTraveler"="D: \ SPRING \ SG900 \ Data \"   
"CommonDrive"="D: \ SPRING \ SG900 \ Data \"   
"PathMaps"="D: \ SPRING \ SG900 \ Maps \ LP \ GCP \"   "Versao"="09.1509.1027"   
"PathApl"="D: \ PRIMAVERA \ SG900 \ APL \"   
"3DPARTY"="TRUE"