Message "S7UBTSTX.EXE - cannot find ordinal number"
Why, after upgrading from STEP7 V5.0+SPx to V5.1, do I get the message "S7UBTSTX.EXE - cannot find ordinal number"?
After upgrading from STEP7 V5.0 SPx to STEP7 V5.1 you get the message
"S7UBTSTX.EXE - cannot find ordinal number.
Cannot find the ordinal number 46 in the Dynamic Link Library ATL.DLL".
The ATL.DLL file is available in multiple different versions on the computer. Only one such DLL must be available and must be located in the folder "C:\WINx\system32".
Rename all the other multiple DLLs to *.alt. This should solve the problem.