Written by Manfred van Poorten

Description:
ICE68 checks that all custom action types needed for an installation are valid. Failure to fix the error reported by ICE68 causes an installation that attempts to execute the action to fail. ICE68 issues a warning if the msidbCustomActionTypeNoImpersonate attribute is set without also setting the msidbCustomActionTypeInScript attribute.

Concerns:
ICE68 returns an error if an action type needed for an installation is invalid.

Additional Information:

ICE68 verifies that the specified type for all Custom Actions in the Custom Action table is valid. If this is not the case, then it provides an error as output. Also, this ICE verifies that the bit “msidbCustomActionTypeInScript” (this indicates that it concerns a deferred execution) is set as “msidbCustomActionTypeNoImpersonate” (is executed under “system” context).

A small note (extended information: see platform SDK, description "Custom Action In-Script Execution Options"):

The Type field in the Custom Action Table is a Hexadecimal field, imagine that as follows: 0x00000000

“msidbCustomActionTypeInScript” is hexadecimaal defined as 0x00000400.

“msidbCustomActionTypeNoImpersonate” is defined as 0x00000800.

A Custom Action “Execute Program from installation” is definied as 0x00000002.

For a Custom Action which is executed from the binary table under system context, the type will thus be 0x00000C02. This is the decimal number 3074, and indeed, you will also find it in the Custom Action Table.

examples of possible errors:

1. Even though custom action 'CustomAction1' is marked to be elevated (with attribute msidbCustomActionTypeNoImpersonate), it will not be run with elevated privileges because it's not deferred (with attribute msidbCustomActionTypeInScript).
   
   
2. Custom Action Table:

Invalid custom action type for action 'Action1'.

In case you wish or need to resolve this error:

1. Add 2048 (hexadecimaal 800) to the Type for Custom Action.

The Custom Action Type does not exist, so there is no hexdecimal combination possible where this number comes out. Verify which Custom Action you wish to use, which Custom Action In-Script Execution Options and insert the correct type.