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Level 2

Digital signing on Windows 2008

I'm using InstallShield 2015 to create an MSI file.

On my Windows 7 (64 bit) machine, I can specify a pfx file and password, and it will sign the MSI file.

On my Server 2008 (32bit) machine, it can't sign the file. It fails with error -1027.

I've looked for what might cause this:
1. Improper pfx file or password - nope, it works on Win7, and works on 2008 when I use signtool.exe directly

2. Signtool.exe is missing - it seems that earlier versions of IS needed it in either the support or system subdirectory of Installshield. I copied it to both of those without any luck. (It's not in any subdir of IS on my Win7 machine.)

Any help would be appreciated,
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Level 5

Hi Brian,
there is only a limited support for SHA256 signing under Vista an Server 2008.
I had also problems to get SHA256 signing run on Windows Vista and Windows Server 2008.

I think the only solution is to upgrade to Windows Server 2008 R2 which has a full support of SHA256 signing.

Cheers Joerg
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