>You need to use DCOMCNFG to set up the .EXE server called from the MTDLL. You must run DCOMCNFG on PDFrun.AVFPpdf or whatever your EXE server is prior to using it. Under DCOMCNFG Security, add Custom Access and Custom Launch permissions for the IUSR, IWAM, and ASPNET accounts. You may need to register too, in which case just use regsvr32.
>Is your web server Win2k Server? Are you still using Print2PDF?

Thanks for your reply Claude.
Yes my webserver is W2K. No I am not using Print2Pdf anymore. I am using the pdf driver from Amyuni.

Thanks for the hint about DCOMCNFG. I am still trying to get it to work, but I feel I am getting close to the solution.

Einar