AxAcroPDFLib.AxAcroPDF in Word Addin (32bit & 64bit)

Question

i'm trying to get the active x control (adobe acrobat - AxAcroPDFLib.AxAcroPDF) to work within my word 2010 addin. when i'm building the addin with target platform x32 it works. the problem is that i need this also as a x64 addin, because otherwise it won't work with 64bit-word.

with target platform (any or x64): Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

is there any possibilty to get the AxAcroPDF (32bit) to work in a application which is build with target platform (any or x64)?

Answer 1

You're stuck with the 32 bit/x86 control, so your addin needs to be 32 bit/x86 to use the control, and thus Word needs to be 32 bit/x86 as well to load the addin, as Microsoft recommend here:

If users in your organization depend on existing extensions to Office, such as ActiveX controls, third-party add-ins, in-house solutions built on previous versions of Office, or 32-bit versions of programs that interface directly with Office, we recommend that you install 32-bit (x86) Office 2010 (the default installation) on computers that are running both 32-bit and 64-bit supported Windows operating systems.