cPrintURL not working on Terminal Server

We are using pdfcreator com object to create pdf files from html document in a conventional VB6 environment. this is working fine in all environments. unfortunately it does not work under citrix/w 2008: invoking the cPrintURL method opens the IE window showing the html doc. the application looses connection to ie, i only can stop the process.

tried it with all  versions from 1.2 to  4.1, same result. the installed version of ie is 8.

I posted this problem on the german forum several days ago, but did not receive any answer!

thanks for your help!