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weilx002
Level 2

Access Violation in isdev.exe when opening an InstallScript MSI project

I have been using InstallShield 2015 SP2 for years and today every time I try to open an InstallScript MSI project it crashes with an access violation in isdev.exe. All MSM Database projects open normally. All InstallScript MSI projects fail. I am on the Start Page tab and click on the MSI project and immediately get the InstallShield Error window.

*** EDIT ***: Is there a list of folders used by InstallShield? I can access my projects by installing on a different computer, which is not ideal, but it indicates I should be able to get InstallShield to work on my main computer by deleting folders that will get freshly populated by an InstallShield re-installation.

I am running on Windows 10 version 20H2. I tried rebooting my computer. I tried re-installing InstallShield. The text of the error message is:

Exception ACCESS_VIOLATION (0xc0000005)
at address 0x07f93192 trying to read address 0x00000000.

File : C:\Program Files (x86)\InstallShield\2015\System\isdev.exe
Version : 22.0.0.401
Exception : c0000005
Address : 07f93192
Access Type : read
Access Address : 00000000

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