Adobe Reader 8.1.2 tries to open almost everything

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i'm running windows xp, patches date.

clicking on file results in adobe reader starting & trying open file - e.g. iexplore.exe, firefox.exe, mozart32.exe. happens lots of system startup items - e.g. google updater, tweakmaster, download accelerator plus, (dlink wireless) airgcfg.exe, adobe's reader_sl.exe .. more 20 when log in(!).

i suspected corrupted installation opened add/remove pgms - tried opened adobe reader. tried running regedt32.exe, adobe reader tries open pdf (obviously without luck). error message reports says -

"adobe reader not open 'rundll32.exe' beause either not supported file type or because file has been damaged (for example, sent email attachment , wasn't correctly decoded)."

the named exe vary, rest same.

if right-click on file list of options has [default option] "read" (in bold) "open" being second choice followed other usuals (run as, etc).

regedt32.exe has worse problems .. right-click & read default, open has same effect adobe trying treat exe pdf file & failing miserably. runas myself fails, can runas someone-else , opens okay.

fortunately start\run\appwiz.cpl worked & un-install adobe reader. after rebooting machine okay. re-install of adobe rdr brings problem, un-install done again. multiple reboots before re-installation has no effect (just checked make sure).

i've come conclusion have rogue registry entry has no effect provided don't ever want read pdf file, not true .. do.

what need fix & able install reader no resulting problems? maybe simple reg edit of something?

http://support.microsoft.com/kb/307859


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