At the moment we have a problem with our Powerbuilder 12.5 application and Skype for business. (outlook and office 365). The application freezes we want to mail or print a document. This is a pdf document generated via a pdf print queue and a separate java program. If we terminate Skype FB (and/or outlook. lync.exe) then the Powerbuilder application continues instantly. Anybody have the same problem or an idea what the problem can be? Thanks in advance. René