Excel launch error - 800700c1 is not a valid Win32 application
The execution of the "Launch Excel" action fails with an error message like the following:
Inner Exception:Retrieving the COM class factory for component with CLSID {00024500-0000-0000-C000-000000000046} failed due to the following error: 800700c1 is not a valid Win32 application. (Exception from HRESULT: 0x800700C1).
Details: System.BadImageFormatException: Retrieving the COM class factory for component with CLSID {00024500-0000-0000-C000-000000000046} failed due to the following error: 800700c1 is not a valid Win32 application. (Exception from HRESULT: 0x800700C1).
at System.Runtime.Remoting.RemotingServices.AllocateUninitializedObject(RuntimeType objectType)
at System.Runtime.Remoting.Activation.ActivationServices.CreateInstance(RuntimeType serverType)
at System.Runtime.Remoting.Activation.ActivationServices.IsCurrentContextOK(RuntimeType serverType, Object[] props, Boolean bNewObj)
at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)
at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark)
at System.Activator.CreateInstance(Type type, Boolean nonPublic)
at System.Activator.CreateInstance(Type type)
at WinAutomation.Actions.Runtime.ExcelActions.LaunchExcel(Variant documentPath, Variant varPassword, Variant& excelInstance, Int32 launchMode, Boolean visible, Boolean loadAddInsAndMacros, Boolean needsAuthentication, Int32 passwordInsertionMode, String password, Boolean readOnly).
The solution is presented on the following StackOverflow question:
Deleting the file "C:\Program" fixes the issue.