ActiveX DLL works from VB, not from ASP

NTDEV
1

We’ve got an ActiveX DLL (based on ATL from within VC6) that works great
when accessed from Visual Basic. But when it’s accessed via Active Server
Pages / IIS, weird problems start to occur. I’m digging through MSDN now…
any recommendations on where to look, common problems, “oh yeah, you need
the ABCDE workaround”, etc?

Thanks!

2

> We’ve got an ActiveX DLL (based on ATL from within VC6) that works great

when accessed from Visual Basic. But when it’s accessed via Active Server
Pages / IIS, weird problems start to occur. I’m digging through MSDN

Do you have the correct threading model for your component?
ASP/IIS use apartment model. So, your component must be written for
apartment threading (global data are lock-protected, object instances are
not

  • each belongs to one and only one thread).

Max