PMDll

Name     PMDLL 
Version  v2.8
Author   Arthur van Beek 
         (see EMail Addresses)
         maintained by 
         Steven Levine 
         (see EMail Addresses)
Distrib. Freeware 
Type     PM program 
Price    -
Source   Internet 
         Name: PMDLL28.* 

Description from the author: 

"PMDLL is an OS/2 presentation manager program that shows you the complete 
tree of DLLs loaded by an OS/2 executable file or by a DLL (both 16 and 32 
bit formats are supported). Sometimes it's uncertain why a program won't 
start (correctly) or behaves strange when running. When this program is 
using DLLs one of the causes can be that DLLs can't be found or that DLLs 
are loaded from unexpected directories which contain an incorrect version 
of the DLL. PMDLL gives you an easy way to detect these kind of problems." 

PMDLL is a very useful tool to detect the further DLLs needed by a REXX 
dll (see DLL loading failed). 

There is also a command line tool named ckkdll32.exe from IBM for this 
purpose.