ApMsgFwd.exe is part of ApMsgFwd developed by Alps Electric Co., Ltd. that comes with DELL notebooks. It is a user invoked program and a normal part of PC operations. You can close ApMsgFwd.exe at any point of time to free up system resources.
To ensure if the file belongs to Alps Electric Co., Ltd., you can check in properties if it contains information like "Vendor contains: Alps Electric Co., Ltd. Product is not specified". If this information does not match, then it may be a different file which you have to fix as fast as possible.
Non-system processes like apmsgfwd.exe originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that over time your registry suffers fragmentation and accumulates invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues