Trying to install osCommerce-2.2ms2-19 after filling out the sql login information in Site Applications page results an error saying
SiteAppPackagemanager::installSiteAppRunPreinstallScript() failed: cSiteAppManager::sappmng_run_application_package_script(SITEAPP_SCRIPT_PREINSTALL) failed:Incorrect function. (Error code 1) at C:\WINDOWS\system32\cscript.exe /nologo C:\PROGRA~1\SWsoft\Plesk\var\cgitory\OSCOMM~2.2MS\scripts\PREINS~1.VBS: CScript Error: Can't find script engine "VBScript" for script "C:\PROGRA~1\SWsoft\Plesk\var\cgitory\OSCOMM~2.2MS\scripts\PREINS~1.VBS".