Using OPC_UA_SDK_1.01_Redistributables_Setup.msi as prerequisite for my installer.|OPC UA Standard|Forum|OPC Foundation

Hi,

I have made my installer and would like to install OPC_UA_SDK_1.01_Redistributables_Setup.msi as a prerequisite.

However, on fresh machine that does not have .NET 3.5 Feature triggered on on “Turn Windows features on or off” OPC_UA_SDK_1.01_Redistributables_Setup.msi is failing to install due to lacking of .NET 3.5 SP 1. Even though we install the .NET 3.5 prior to OPC_UA_SDK_1.01_Redistributables_Setup.msi.

Looking in to the msi log, I see your installer is having condition ‘NET35SP1 AND NET35SP1 >= “3.5.30729”‘, which is typical .Net 3.5 SP1 version.

To prove that we are installing .Net 3.5, we are able to install OPC_UA_SDK_1.01_Redistributables_Setup.msi if we finish our software first then installed OPC Redistributable msi without triggering the .Net 3.5 condition from “Turn Windows features on or off”.

Why would this occur?