Hi  murray_desnoye    The error you see is due to the validation that was introduced in IS2020 for  validating  localized string values You can check the below release notes and the master issue number IOJ-1807101 https://docs.revenera.com/installshield23helplib/ReleaseNotes.htm   To fix this issue you need to You need to enable NtfsDisable8dot3NameCreation option in the machine, follow the steps Click Start > Run. Enter regedit and click OK. In the Registry Editor, go to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem Right-click the NtfsDisable8dot3NameCreation entry and select Modify from the drop-down menu. The Edit DWORD Value page opens. In the Value data text box, enter 2. Click OK to close the page.   "The registry state of NtfsDisable8dot3NameCreation is X..." State Values: 0 = 8.3 file creation is enabled on all volumes on the system 1 = 8.3 file creation is disabled on all volumes on the system 2 = 8.3 file creation is enabled per volume on the system (default) 3 = 8.3 file creation is DISABLED on all volumes except the system volume Reference: https://docs.microsoft.com/en-us/archive/blogs/josebda/windows-server-2012-file-server-tip-disable-8-3-naming-and-strip-those-short-names-too   Once you enable this, if you delete and re add the string again the shortname will be created for the strings and you wont see the error 7354.   If you want to manually edit the string yes you can do it, just follow the below kb link  https://community.flexera.com/t5/InstallShield-Knowledge-Base/Error-7354-When-Building-MSI/tac-p/168868#M1401   Regards, Vijay.A ... View more