| Users | Filename | Product | Company | Version | Variant |
|---|---|---|---|---|---|
| 20.51% | %WINDIR% \ SysWOW64 \ piapi32.dll | OSI PIAPI32 | OSIsoft, Inc. | 1.6.1.15 | 12268772 |
| 17.95% | %WINDIR% \ SysWOW64 \ piapi32.dll | PI API library | OSIsoft, LLC | 1.6.8.22 | 24984234 |
| 12.82% | %WINDIR% \ SysWOW64 \ piapi32.dll | PI API library | OSIsoft, LLC | 1.6.8.22 | 28805996 |
| 12.82% | %WINDIR% \ SysWOW64 \ piapi32.dll | PI API library | OSIsoft, LLC | 1.6.8.12 | 13417474 |
| 12.82% | %SYSDIR% \ piapi32.dll | OSI PIAPI32 | OSIsoft, Inc. | 1.6.1.15 | 11056720 |
| 5.13% | %SYSDIR% \ piapi32.dll | PI API library | OSIsoft, LLC | 1.6.8.22 | 30455945 |
| 2.56% | %SYSDIR% \ piapi32.dll | OSI PIAPI32 | OSIsoft, Inc. | 1.6.1.10 | 7491606 |
| 2.56% | %WINDIR% \ SysWOW64 \ piapi32.dll | OSI PIAPI32 | OSIsoft, LLC. | 1.6.1.17 | 32186586 |
| 2.56% | %PROGFILES64% \ PIPC \ Library \ piapi32.dll | OSI PIAPI32 | OSIsoft, Inc. | 1.6.0.4 | 32186598 |
| 2.56% | %SYSDIR% \ piapi32.dll | OSI PIAPI32 | OSI Software, Inc. | 1.6.0.2 | 21858364 |
| 2.56% | %SYSDIR% \ piapi32.dll | PI API library | OSIsoft, LLC | 1.6.8.12 | 26511545 |
| 2.56% | %WINDIR% \ SysWOW64 \ piapi32.dll | OSI PIAPI32 | OSIsoft, Inc. | 1.6.1.15 | 31960168 |
| 2.56% | %WINDIR% \ SysWOW64 \ piapi32.dll | OSI PIAPI32 | OSIsoft, LLC. | 1.6.1.17 | 24064915 |