I haven't come across any document that can explain dependencies between these dlls. Do you see errors recorded through Windows event viewer?
You can download new versions from SAP Service marketplace:
> Support Packages and Patches
> Browse our Download Catalog
> SAP NetWeaver and complementary
> SAP NetWeaver
> <NetWeaver version>, such as SAP EHP1 FOR SAP NETWEAVER 7.0
> Entry by Component
> Application Server ABAP
> <Version of SAP kernel>, such as SAP KERNEL 7.20 64-BIT
> <Operating system>, such as Windows on x64 64bit
> #Database independent
Image may be NSFW.
Clik here to view.
regards
