internetten kısa bi araştırma yaptım. sanırım bu şekilde sorunu çözebilirsin. senin için çevirme yapardım ama vaktim kısıtlı çıkmam lazım :=)

"I remember seeing this issue and for some reason, I seem to remember it had to do with an old or corrupted copy of installshield left over in a temp folder. Check your temp directory and see if you have any old installshield files there and delete them.

Then try to reinstall your app.

I'll dig around but that's what's coming to mind about this issue"