Hi Kavi,

Basically, when your printer queue reports the application name, it is telling you what application invoked the printer drivers to spool the job.

32-bit applications are not natively compatible with a 64-bit operating system. When these programs need to talk to the OS, they have to go through an abstraction layer; a "middle man" that converts requests between 32- and 64-bit.

This is where splwow64.exe comes in. When a 32-bit application needs to print, it sends the job to splwow64.exe first, which then converts the request and passes it along to the printer. The printer only talks to splwow64.exe; it doesn't know that the job was originally initiated by a 32-bit application.

Hi All,

When we print from a 32-bit application that is running on an AMD 64 bit machine,
why is the application name reported as splwow64.exe instead of the one from which we are printing?

Thanks in advance
Kavi