Upgrading existing ACE Client (Receiving) Computers will be a different process depending on the following factors:
Determine Your Existing Version
To determine your existing ACE Client version, follow the below steps

Follow the Below Guide, Depending On Version Number
ACE Client upgrades have changed in various versions. Therefore it is important to upgrade ACE Client in the correct manner depending on the version you have installed. Please follow the below articles depending on the version you have identified in the above step.
| Existing ACE Client Version | Article Link |
|---|---|
| v1.6.3 or Later Release | |
| v1.3.0 to v1.6.2 | |
| v11.x.x or Older Version of ACE Client NOTE: These older versions of ACE Client are not written for the .Net Framework. Therefore there is a large difference between these older clients and the .net v1.3+ clients. |
Uninstalling v11.x.x or Older Version of ACE Client |