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DRS Softech PST Compress Tool

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Key Features of DRS Softech PST Compress Tool

  • Supports batch compression and compresses multiple PST files at once.
  • Offers four different compression modes for flexible file management.
  • Displays a preview of all added PST file contents before compression.
  • Effectively reduces Outlook PST file size for better storage management.
  • Smoothly works with both ANSI and UNICODE PST file formats.
  • Compresses PST files with or without their attachments accordingly.
  • The PST Compact Tool can exclude attachments from compression.
  • The Date Filter to compress the PST file within a specific Date range.
  • Provides an option to set passwords for newly created PST files.
  • Removes duplicate emails during compression using various criteria.
  • The PST Compress Tool can help you to split the resultant PST file.
  • Compatible with PST files of any size and any Outlook version.
  • Reduce the PST size and save the compressed file to your chosen location.
  • Designed with an intuitive and user-friendly interface to reduce PST file.
  • Saves extracted attachments separately while compacting emails.
  • Fully compatible with all Windows versions, including Windows 11.
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Situations Where the DRS Softech PST Compress Tool is Useful

pst-file

To Compress PST File in Bulk

Managing multiple large PST files manually is time-consuming. The DRS Softech PST Compact Tool allows bulk compression, enabling users to compress multiple PST files at once. This is ideal for IT admins, businesses, and users handling large email backups. With just a few clicks, you can free up storage space, improve Outlook performance, and efficiently manage multiple PST files.

outlook

To Compress PST File Without Outlook

Have you ever seen the error “Data File Has Reached the Maximum Size” while using Outlook? This can prevent you from receiving new emails and slow down your workflow. With the PST Compact Software, you can compact large PST files and free up space, even if Outlook is not installed on your system. It is also useful for orphaned PST files, ensuring they remain accessible without Outlook.

pst-file-error

Fix "PST File Too Large to Open" Error

Sometimes, Outlook refuses to open a large PST file and shows errors like “Cannot open Outlook data file,” which may have exceeded the storage limit. The DRS Softech PST Compress Tool helps reduce the file size, allowing Outlook to open it normally and preventing data loss. It will help you to reduce file size and free up space while keeping all your emails intact.

Leading PST Compress Tool with High-End Functionalities

multiple-file

Batch Compression for Multiple PST Files

Managing multiple large Outlook PST files can be time-consuming. With the DRS Softech PST Compress Tool, you can compress multiple PST files in a single operation. With its batch-processing feature, users can reduce the size of multiple files at once. Hence, it is useful for businesses and IT professionals to handle large Outlook data files.

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Multiple Compression Modes for Flexibility

The Compact PST Software offers four distinct compression modes to suit different user needs. Users can choose to:

  • Remove All Attachments in a New PST File
  • Compress All Attachments in a New PST File
  • Remove All Attachments in a New PST File and save them in a separate folder.
  • Remove All Attachments in a New PST File and compress them in a separate folder.

So, you can apply a combination of these methods to optimize storage effectively.

preview

Preview PST File Contents Before Compression

Before proceeding with compression, the PST Compression Tool allows you to preview added PST files. Users can view emails, attachments, and other data. So, you can ensure you are compressing the correct files without affecting important data. It helps you avoid errors and provides better control over the compression process.

outlook

Efficiently Reduce Outlook PST File Size

Large PST files can slow down Outlook and even lead to corruption issues. This PST Compress Tool effectively reduces PST file size by compressing email data and attachments. It helps users optimize their Outlook mailboxes and free up storage space. As a result, it enhances Outlook's speed and performance.

pst-file.

Supports All PST File Formats and Outlook Versions

No matter which version of Outlook a user is working with, this PST Compact Tool is fully compatible. It supports both ANSI (used in older Outlook versions) and UNICODE (used in newer versions) PST file formats. Anyone can perform the smooth compression across all Outlook editions without any compatibility issues.

without-attachments

Compress PST Files With or Without Attachments

Users have the flexibility to compress PST files while keeping attachments intact. Also, they have the option to remove attachments completely. This embedded feature is useful for users who want to reduce PST file size. Along with that, this utility will maintain the email content and metadata.

filter

Advanced Filtering Options for Selective Compression

Instead of compressing the entire PST file, users can filter data based on specific Date Ranges. The built-in Date Filter allows users to select and compress only emails and attachments from a certain period. So, it will be easy for the users to manage essential email data while preserving recent messages.

remove-duplicate-emails

Remove Duplicate Emails During Compression

Duplicate emails can clutter a PST file and take up unnecessary storage space. DRS Softech PST Compress Tool identifies and removes duplicate emails during compression based on various criteria such as sender, subject, and timestamp. This feature ensures a clean, optimized PST file without duplicate messages.

split-option

Split Large PST Files for Better Management

Oversized PST files can become difficult to manage and prone to corruption. This PST Compact Software not only compresses PST files but also offers an option to split them into smaller, more manageable parts. This feature helps prevent data loss and keeps Outlook running smoothly.

windows

Fully Compatible with All Windows Versions

Users don’t have to worry about system compatibility, as the PST Compress Tool works flawlessly on all versions of Windows, including Windows 11, 10, 8, 7, and older versions. Whether using the latest or an older Windows OS, this utility performs smoothly without technical issues.

Easy Steps to Compress PST File with the PST Compress Tool

  • Step 1: Download and launch the DRS Softech PST Compress Tool on your Windows system.
  • Step 2: Click on Select File/Select Folder to add the desired PST file, Compress, and move to Next.
  • Step 3: In the next panel, you can preview all the selected PST data in tree tree-structured format>>Next.
  • Step 4: Apply additional features and enter the Path to save the compressed PST file
  • Step 5: To complete the compression process, click the Start Compression button.
Full Guide   

Why Choose DRS Softech PST Compress Tool?

If you have a large PST file slowing down Outlook, causing performance issues, and storage problems. With the DRS Softech PST Compress Tool, you can compress multiple PST files at once in just a few clicks. Unlike the manual method, it can remove or extract attachments without deleting emails, eliminate duplicates, and ensure no data loss. Plus, it works with all Outlook versions, saving you from compatibility issues.

DRS Softech PST Compress Tool: What’s Included in Free & Full Versions?

Software Feature Free Version Full Version
Compress and Reduce PST File Size 50 Emails per folder Complete Folder
Offers 4 Compression Modes
Batch PST File Compression
Apply Date-Based Filtering
Preserve Email Meta Properties
Remove Duplicate Emails
Split Compressed PST Files
Works with All Outlook Versions (32 & 64-bit)
24*7 Tech Support & secure 100%
Compatible with Windows 11 & Earlier Versions
Download and Purchase Download Purchase

Software Specification

System Requirement System Requirement
Supported Operating Systems: 11, 10/8.1/8/7/, 2008/2012 (32 & 64 Bit), and other Windows versions.
Processor: Intel® Core™2 Duo E4600 Processor 2.40GHz
RAM: Minimum 8 GB recommended
Disk Space: Minimum Disk Space - 512 GB
About Software About Software
Version: 22.09
Size: 106.0 MB
Release Date: 03 Apr 2025
Language Supported: English
License Types: Home | Admin | Technician | Enterprise
Supported Links Supported Links
Software Guide
EULA
Installation/Uninstallation
Software Activation Guide
Additional Information Additional Information
Ans: Follow the steps below if the software is not working properly on your PC.
  1. Go to Windows Defender.
  2. Click on Settings.
  3. Turn off Real-Time Protection.
Without disabling the controlled folder access, the application cannot install some essential programs. It is because the safety feature blocks anything that tries to modify user\{user name} or various other related folders.
Ans: The Antivirus programs block some part of our application which further hinderance the tool working. So, it is mandatory to temporarily disable the Antivirus program. To ensure proper working of the application, Enable the Allow access (Whitelist) from Antivirus setting.
Ans: Disable the antivirus and Windows Defender and add the product to the exception list. The firewall and antiviruses that protect your system from malicious programs also consider our product a threat. So, you need to deactivate the security features.
Ans: Yes, the tool supports SAN, and NAS storage systems provided that the file's access is transparent.
Trial Limitation
The Free PST Compress Tool lets users shrink only 50 emails per folder in the trial version. To compress the entire PST file without limits, you need to upgrade to the full version. The full version provides unlimited compression and advanced features and ensures flawless PST file management.

Frequently Asked Questions

With the DRS Softech PST Compress Tool, you can compress the PST file without Outlook. Here are the simple steps to compress the PST file:
  1. Install the PST Compression Tool on your PC.
  2. Select single or multiple PST files and click Next.
  3. Choose folders from the preview panel and proceed.
  4. Pick a compression mode and set the output location.
  5. Click Start Compression to Compress the PST file.
Yes, this tool supports batch compression to reduce the size of multiple PST files in one go.
Yes, it is fully compatible with both ANSI (older PST format) and UNICODE (newer PST format) files, regardless of the Outlook version.
No. The software provides options to either compress PST files with attachments, extract attachments to a separate folder, or remove them entirely to free up space.
Yes, the Outlook PST Compact Tool includes a preview feature that allows users to view their mailbox content before initiating the compression process.
Yes, this utility offers a split option to break the compressed PST file into smaller, more manageable parts for better performance.
Yes, it supports all Outlook versions, including Outlook 2021, 2019, 2016, 2013, 2010, and earlier (both 32-bit and 64-bit versions).
Yes, the DRS Softech PST Compress Tool is fully compatible with Windows 11 and all previous Windows versions.
Yes, a free demo version is available, which allows you to compress up to 50 messages per folder.
Absolutely! The tool ensures 100% data integrity, meaning no emails, contacts, or important details are lost during compression.
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Testimonials

Find out what IT professionals and businesses really think about our software!

Trusted by IT Professionals & Enterprises Worldwide

As an IT support specialist, I often deal with large PST files that slow down Outlook. The DRS Softech PST Compress Tool helped us reduce file sizes while keeping all emails intact. It has significantly improved email management and system performance. A must-have for businesses handling large email databases!
- Daniel W.
(IT Support Specialist)
I had several oversized PST files that were difficult to manage. The bulk compression feature saved me hours of manual work by compressing all files at once. The tool is easy to use, and the output files work perfectly in Outlook. It’s an essential software for anyone struggling with storage issues!
- Sophia L.
(System Administrator)
My Outlook was running extremely slow due to a huge PST file. After using the DRS Softech PST Compress Tool, my emails now load quickly, and Outlook doesn’t freeze anymore. The PST Compress Tool removed unnecessary attachments while keeping my emails intact. I highly recommend this tool for Outlook users!
- Michael R.
(Business Consultant)
I’ve tried other PST compression tools before, but this one is by far the easiest to use. The interface is intuitive, and I loved the preview feature that showed my mailbox contents before compression. The tool also allows me to remove duplicate emails, making my inbox much more organized. A fantastic tool for professionals!
- Emily K.
(Office Manager)
We handle multiple Outlook accounts in our company, and large PST files often cause performance issues. This tool not only compresses PST files but also allows us to extract attachments separately to manage storage easily. The support team is also very responsive. It’s a game-changer for IT admins!
- David P.
(IT Director)
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