I use the MS HPGL Filter for office, which allows import of such files as pictures into Office apps. It installs fine under XP. Now upgraded to Windows 7 and I'm having trouble.
Under XP, the filter file goes into C:\Program Files\Common Files\Microsoft shared\filters and there is a registry update file HPGL32.reg that is run to do all the necessary registry magic.
Under 7 it is not clear if the installation is to "Program Files" as above, or the new folder "Program Files (x86)". Comparing XP and 7 installations all the other Office filters are in the "Program Files (x86)" path. So I put it there and edited the .reg file to replace all the entries with the extra " (x86)" text. Having done all that, the filter does not appear to being found by any office application.
So any help appreciated, is it the wrong path, a registry problem, some incompatibility or am I doing something else wrong. TIA