# Calling DLLs from PxPlus

DLL Calls via WindX |

Be aware of the following issues when accessing DLLs from within WindX:

- Know where to find the data - Is it on the client or the server?
- Do not pass pointers to data if they exist on a server to a DLL call that is being handled by a WindX workstation.
- DLLs on a WindX workstation cannot access a memory location on the server.
- It is often best to encapsulate DLL work into a single program that can be called from the server via the [WDX] command tag; e.g. CALL "[WDX]...