Which DLL is registered ?

[Robert]

We have two applications that is using different version of Crystal Runtime
DLL CRPE32.DLL (Version 7 and Version 8.5). The application works in some
workstations but not in some others.

We would like to know can a system have 2 versions of DLL ? If not, how can
we find out which version of DLL is registered ?

Thanks

 

[Detlev Dreyer]

We would like to know can a system have 2 versions of DLL ?

Sure, even three or four. Since DLLs should be backward compatible,
it's often (not always) a good idea to copy the latest version into
the %windir%\system32 folder and to register that file version if the
registration is required. All other copies should be renamed and may
be deleted if there are no problems when running the applications.

If not, how can we find out which version of DLL is registered ?

Search the registry for that file name in order to see the full path.
Check the file properties in order to obtain the version info.