84,488,480 programs installed

Should I remove IBM Lotus Forms Viewer?

What percent of users and experts removed it?
3% remove it97% keep it
Overall Sentiment
Very good
What do people think about it?
(click star to rate)
How common is it?
Global Rank #10,329
United States Rank #5,051
Reach 0.0345%
Lifespan of installation (until removal)
< 217.69 days
1377.64 days >
Average installed length: 723.84 days


VersionDistribution 0.29% 36.67% 0.15% 6.19% 1.33% 1.47% 0.15% 53.17% 0.59%

Typically installed together

Other programs by IBM

IBM Lotus Forms Viewer 3.5.1

What is IBM Lotus Forms Viewer?  (from IBM)

IBM Forms provides a zero-footprint electronic forms solution to help you automate and move forms-based business processes off the desktop and onto the web where they can become integrated with your overall business operations. The new IBM Forms 4.0 offers an exceptional web experience and out-of-the-box workflow for...  Read more


IBM Lotus Forms Viewer 3.5.1 is a program developed by IBM. The most used version is, with over 98% of all installations currently using this version. It adds a Browser Helper Object (BHO) to Internet Explorer. A scheduled task is added to Windows Task Scheduler in order to launch the program at various scheduled times (the schedule varies depending on the version). The main program executable is masqform.exe. The software installer includes 25 files and is usually about 63.46 MB (66,545,641 bytes). In comparison to the total number of users, most PCs are running the OS Windows 7 (SP1) as well as Windows 10. While about 93% of users of IBM Lotus Forms Viewer come from the United States, it is also popular in Germany and Korea.

Program detailsProgram details

URL: www.IBM.com
Help link: www.IBM.com
Installation folder: C:\Program Files\IBM\Lotus Forms\Viewer\3.5\
Uninstaller: MsiExec.exe /X{A0BBF7AB-2F47-47DC-BB02-4C826F2BC73C}
(The Windows Installer is used for the installation, maintenance, and removal.)
Estimated size: 63.46 MB

Program filesFiles installed by IBM Lotus Forms Viewer 3.5.1

Program executable:masqform.exe
Name:IBM® Lotus Forms(tm) Viewer
Path:C:\Program Files\ibm\lotus forms\viewer\3.5\masqform.exe
Additional files:
  • ssce5432.dll (by Wintertree Software) - Sentry Spelling-Checker Engine for Windows (Sentry Spelling-Checker Engine)
  • FormObjectModelStub.dll - IBM(R) Lotus(R) Forms Server - API (FormObjectModel Stub Library)
  • pe_cc.dll - API Stub Library
  • pe_com.dll - API COM Library
  • pe_java.dll - Java Speed Library
  • uwi_java.dll
  • PE_ctl.ocx - IBM® Lotus Forms(tm) Viewer (IBM® Lotus Forms(tm) Viewer OCX)
  • PEhelper.dll - IBM® Lotus Forms(tm) Viewer IE helper
  • pe_crt71.dll (by Sample) - Sample Application DLL (User-Generated Microsoft (R) C/C++ Runtime Library)
  • pe_crtp71.dll (by Sample)

Program behaviorsBehaviors exhibited

Internet Explorer BHO
  • PEhelper.dll is installed in Internet Explorer as a BHO (Browser Helper Object) under the name 'PE_IE_Helper Class' with the class of {0941C58F-E461-4E03-BD7D-44C27392ADE1}.
Scheduled Task
  • masqform.exe is scheduled as a task with the class '{77EF9630-6B5E-4E27-B422-889066F686D2}' (runs on registration).

How do I remove IBM Lotus Forms Viewer?

You can uninstall IBM Lotus Forms Viewer from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program IBM Lotus Forms Viewer 3.5.1, click it, and then do one of the following:
    • Windows Vista/7/8/10: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove IBM Lotus Forms Viewer.

How do I reset my web browser?

If your web browser homepage and search settings have been modfied by IBM Lotus Forms Viewer 3.5.1 you can restore them to their previous default settings.
Microsoft Internet Explorer
Mozilla Firefox
Google Chrome

Win 7 (SP1) 67%
Win Vista (SP1) 0%
Uninstall it 3%
Keep it 97%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 68.68%
Windows 10 21.18%
Windows Vista 6.91%
Windows XP 3.24%
Which OS releases does it run on?
Windows 7 Home Premium 53.32%
Windows 7 Professional 7.98%
Windows 8.1 7.39%
Windows Vista Home Premiu... 5.91%
Windows 10 Home 5.76%
Windows 7 Ultimate 4.43%

Distribution by countryGeography

93.47% of installs come from the United States
Which countries install it?
  United States 93.47%
  Germany 2.03%
  Korea 0.53%
  Kuwait 0.53%
  Japan 0.53%
  United Kingdom 0.44%
  AF 0.35%
  BH 0.18%
  Belgium 0.18%
  Thailand 0.09%
  Qatar 0.09%
  France 0.09%
  RS 0.09%
  Australia 0.09%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 37.28%
Dell 24.78%
Toshiba 12.72%
ASUS 7.97%
Acer 7.54%
Samsung 4.31%
Alienware 1.94%
Lenovo 1.94%
Common models
HP Pavilion dv6 Notebook ... 8.12%
HP Pavilion dv7 Notebook ... 5.84%
HP 2000 Notebook PC 4.55%
HP Pavilion g6 Notebook P... 3.90%
HP G72 Notebook PC 2.27%
HP Pavilion g7 Notebook P... 2.27%

About IBM

International Business Machines (IBM) manufactures computer hardware and software, and offers infrastructure, hosting and consulting services in areas ranging from mainframe computers to nanotechnology.
Publisher URL: www.ibm.com


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