Calculating file size, free space of any given .PST file with MrMAPI utility

Earlier in my blog, i got the request from one of the MAPI developer to see is there any way we can calculate the file size, free space of any given .PST file. Also he pointed that he can access the PST file using Stephen’s MFCMAPI utility. For this activity, I used Stephen’s another tool…

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Exploring with Microsoft Exchange Server Protocols docs

Recently I got requests from the developer community regarding my earlier article – so I take this opportunity to point how you can explore more about Microsoft Exchange Server Protocols. As you know through the Open Specifications program, Microsoft is helping developers open new opportunities by making technical documents related to interoperability for certain popular…


Outlook: How to compact my PST/OST file in Outlook 2010?

I listed some of the regular questions that we see from our customers from PST/OST are, 1) How to reclaim the space from PST? 2) How to compact my PST file? 3) How to compact PST/OST files to eliminate deleted item space in Outlook? 4) My PST is filling my hard disk? To conserve space…

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Various Outlook versions : .pst file has different formats & folder size limits

Microsoft Office Outlook 2007 & Outlook 2003 have both a different format and a larger overall size limit for the personal folders (.pst) file than the .pst files that are in the earlier versions of Microsoft Outlook. In Outlook 2002 and earlier, the .pst files are in the American National Standards Institute (ANSI) format, and…

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Outlook UI Issue: Save password setting not retained ?

One of my customer uses MS Windows XP SP3 & Outlook 2007 reported that whenever he tries to connect to the Internet service provider (ISP) to retrieve messages from POP3, his earlier entered password is not retained. He was pretty sure that  he chose to save the password. Also he tried to entering the correct…

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PST/OST Series : Personal folder files are unsupported over a LAN or over a WAN link

Do you know why personal folder files (.PST files) are unsupported over a local area network (LAN) or wide area network (WAN) link? The .PST files are not meant to be a long-term, continuous-use method of storing messages in an enterprise environment. Although it is possible to specify a network directory or a Universal Naming…

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Outlook Performance Series : Outlook 2007 & Windows Vista error – .pst file could not be opened

Welcome to troubleshooting performance issues – MS Outlook Performance Series – Part 6  One of my customer reported that he is facing issue with Outlook 2007 & Windows Vista environment, as he can’t open the .pst files. He get the following error: <sample>.pst file could not be opened. The file may not be compatible with this version of Outlook or…

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Outlook Performance Series: Outlook data file (.pst or .ost file) issues

Welcome to troubleshooting performance issues for MS Outlook 2007 Series – Part 4 If the .pst file or the .ost file shuts down incorrectly, you may receive one of the following error messages the next time that you start Outlook: • Error message 1:  Outlook cannot open the data file filename until it has been checked for problems. • Error…

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