Problem with redistributables on upgrade

[ericjheld]

I have an installer that, in addition to installing the files we provide, also installs a microsoft redistributable that contains microsoft files that the product requires to run. I am doing this by placing the redistributable in Support Files and launch the redistributable via the Installscript:

szEXE = SUPPORTDIR ^ "vcredist_x86_sp1.exe";
LaunchAppAndWait(szEXE, " /q:a", LAAW_OPTION_WAIT);

If I install it cleanly on a new environment that never had the product on it, I have no problems. However, if I do an upgrade from a build that did not contain the redistributable, the redistributable is not installed on the environment and the product will not run. Has anyone else had problems with redistributables on upgrade? I only seem to run into this problem on 64-bit environments. Any help would be appreciated.

Thanks,

Eric

[Barbara]

There is also a package called vcredist_x64.exe which should be used on 64bit systems. By the way, why dont you use the MergeModules?

Barbara