Because MSCAL.OCX is unstable on modern systems, the "best practice" is to remove the dependency entirely: "MSCAL.OCX" error when moving from Access 2007 to 2010

The MSCAL.OCX file is missing from your C:\Windows\SysWOW64 or System32 folder.

For 64-bit Windows, type: regsvr32 C:\Windows\SysWOW64\MSCAL.OCX and press Enter.

Searching for "mscal.calendar.7 download" usually indicates you are trying to fix a broken legacy application that relies on the . This ActiveX control (MSCAL.OCX) was a staple for developers using older versions of Microsoft Access, Excel, and Word to provide a date-picker interface.